My low carbon footprint CRS tank.

[milt]

Hi guys, just want to show you all my CRS tank that has been set up late october 2007. Though I have kept planted tanks for the last 8 yrs, I decided to stop having them 2 yrs ago when I shifted to my new place as there was no place in my apartment for the tank. However late last year I started becoming interested in aquariums again when I saw some shrimps in my friend's fish tank. Previously, the only shrimps available were the ones that have young requiring brackish water to grow so it was of great interest to me that there are new varieties that can have young in freshwater. When I saw the CRS, I was hooked and decided to have fish tanks again for shrimps in my balcony.
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I decided to have a low carbon footprint shrimp tank and take full advantage of the the natural breeze and sunlight available in my balcony. As the balcony overlooks a reservoir, the air is really fresh and I think it may have a effect on the tank though I can't really quantify it.... As you can see, there are no flourescent lights or chillers or fan for the tank. The only equipment that need electricity is the hang on filter. I know I am taking a risk here with no chiller but I take everything as a learning process. The lack of flourescent lightings and a constant breeze keeps the water from 26 to 27C in the nights to 28 to 29.5C in the hottest part of the day. On raining days, the temperature can go down to 25C. Somehow, the shrimps doesn't seem to mind the daily fluctations of about 2-3 degrees in the temperature. Also the balcony does not receive direct sunlight as it is north-south facing.
The tank is 120cm by 20cm by 20cm and simulates a small stream with a small current at the surface provided by the filter. I use a mixture of wool and sinctured glass material for the filter. The plants are slow growing ones like anubias, java ferns, java moss, fissidens, hair grass..... I also have duckweed, various types of small water lettuce growing at the surface to absorb excess nitrates and can be discarded easily as compost material for my ground plants. I don't use any fertilisers at all for my waterplants. The water parameters are GH 0-30, KH 0, ph6.0, NO2 0.5, NO3 0 The water parameters are exactly similar to my tap water and I change my tank water about 5 to 10% every 2 days as I use the water from the tank to water some of my houseplants. I merely top up the tank with water straight from the tap and as the amounts of new water is small, I do not add anti-chlorine.
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Currently I have 20 plus CRS in my tank and they are a mixture of C to A+ CRS shrimps. The survival rate initially was about 60 to 70% and the survivors seem to be doing well up to now which is a period of 3 months plus. I feed them once a day with algae wafer in minute quantites(1/3 of a wafer) as I saw a few planaria in the tank. I usually cut the wafer up to minute pieces before feeding so there will be less fighting among the shrimps. Yesterday was a happy day for me as after a frenzied mating ritual , I finally got my first pregnant C grade female. I am keeping my fingers cross and hope I will get my first batch of babies soon.
I also keep RCS in my smaller tank below my main tank and they have been breeding like rabbits.
Sorry for the picture quality, got to get a proper camera for the macro shots. I am sure some of you will notice the algae growing at the back of the tank but I have since cleaned it up after not having clean it for the last 4 months.....
Thanks for reading and any comments or questions are welcomed.lol

[Kian]

nice shrimps you have there=)maybe is beacuse you shaked your hand =)

[milt]

Thanks Kian, yep, next time I will try to use a tripod. :)

[nandu]

hi Milt

You have a nicely set up balcony there, a cool place to relax.The concept of shrimp tank on the balcony wall is well conceived,though i feel the natural light might be strong enough to create green water/algae problems in due course.
Anyway nice shrimp and a good start. please keep us updated.

nandu

[jackqaz]

It's the rainy season now in sg, so I guess there is no problem for temp. I've an indoor community tank, with CRS breeding at the moment. However, I observed that they stop breeding during the hot season( june and july ) I can control the temperature below 27degrees with fans, the casualties are minimal last year. For your case, it might be more diffcult for you during that period. Perhaps you might want to consider a contingency plan.

http://www.shrimpnow.com/forums/showthread.php/my-community-tank-2176.html

[milt]

hi Milt

You have a nicely set up balcony there, a cool place to relax.The concept of shrimp tank on the balcony wall is well conceived,though i feel the natural light might be strong enough to create green water/algae problems in due course.
Anyway nice shrimp and a good start. please keep us updated.

nandu

Thanks Nandu for the comments.
Here's a photo of the tank after I scraped the walls.
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I haven't as yet have problems with green water so keeping fingers cross. I guess the absence of direct sunlight does make a difference. In fact my hairgrass seems to be doing much better here than my previous indoor tank that had chiller, lights, CO2 the whole works, the hairgrass then just didn't seem to grow.....

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Of all the water plants I think hair grass is one of the hardest to cultivate, here's a pic of my current hairgrass, if you see most closely, you can see some runners from the parent plant...... :)

[milt]

It's the rainy season now in sg, so I guess there is no problem for temp. I've an indoor community tank, with CRS breeding at the moment. However, I observed that they stop breeding during the hot season( june and july ) I can control the temperature below 27degrees with fans, the casualties are minimal last year. For your case, it might be more diffcult for you during that period. Perhaps you might want to consider a contingency plan.

http://www.shrimpnow.com/forums/showthread.php/my-community-tank-2176.html

Thanks Jackqaz, yep I will definitely consider getting a fan once the weather gets warmer..... Last week the weather was quite warm and the peak temp in the late afternoon was 29.5C but thank goodness I had no casualties.This few days has really been quite cool in singapore terms
because of the rains and the water is a cool 25C now.lol

Anyway, nice fishtank you have got there! Can I ask how are your CRS breedouts like, are they more towards C or A? If I am not wrong you also have grade C to A parent shrimps? Do you find any difference in breeding rates of the different grades with regards to your slightly higher temp of your tank like maybe your C grades are doing much better or is there no difference?

[ScottTCS]

Hi All

Just join this forum.

Previously (without chiller) on my 4ft tank with 2 hook on fan, I kept about 200 hundred cherry red and bought about 15 CRS from LFS.

I did a 30% water change weekly but i realise once my CRS is pregnant, after a few day, i will find her corpse laying in the tank. The babies never made it.
Then every fortnightly or sometime monthly, there will be a dead CRS in the tank. I wonder why? Maybe they cannot adept to the temp flutuaction from 26 to 28.5 in the afternoon.

After installing a chiller, with the same water parameter, my existing fleet of CRS now has multply to about 60 over CRS and my pool of cherry red also multiplies.

ScottTCS

[milt]

Hi everyone,

Tried to take some slightly better photos of my shrimps and I think this is the best I can squeeze out of my automatic digital camera......

I finally manage to snap a shot of my 4 day pregnant female this morning when she came out of hiding to feed.....
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Whom is she mated by?

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or

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or

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I guess only time will tell....... :D

[thief]

Wow that is awsome setup you got there, I fined it really cool that it is outside. Is it always so hot in Singapore? I want to some day go and travel asia.:)

[milt]

Wow that is awsome setup you got there, I fined it really cool that it is outside. Is it always so hot in Singapore? I want to some day go and travel asia.:)

Thanks Thief for the kind comments! lol Yeh it is my first time having an outdoor tank and I have learnt a lot from it. I am fully aware that I might fail to have a viable population of CRS shrimps because of the temperature and am willing to take the gamble, if all else fails, I will just have cherrys and malayan shrimps in the outdoor tank.

Yeh it is always so warm in singapore, for some of us, 24-25C is already quite chilly! The temperature is always quite constant except it may varies a few degrees between the dry and wet seasons but nothing like the weather in US. Thats why I think it may be easier to have an outdoor tank here.

Come visit Singapore one day, it is a beautiful country, modern and yet full of tropical greenery.....:cool:

[jackqaz]

Hi milt,

My 3 batches breedouts so far are a 20% gradeA, 30%gradeB-C, 50% gradeC+. Hence generally the breedouts are upgrading from gradeC. However, I have not started a nano for selective breeding. Only selective breeding can improve the grading after 2-3 generations, depending on the grade you start with.

I'm more keen towards a community tank, with few more varieties. With fishes, I do not have problems with pests and worms. So for me, the tank can be maintained easily. I only change 20% of my water, every 2months.lol

[Kian]

hey milt wher you got your tank and how much you got it for?looking for one that look some thing like that so that i can diy into a few slot using plastic divider that use for "luo han" and seperate the diff type of grade or maybe use for breeding project=)

[milt]

hey milt wher you got your tank and how much you got it for?looking for one that look some thing like that so that i can diy into a few slot using plastic divider that use for "luo han" and seperate the diff type of grade or maybe use for breeding project=)

I got it done at one of those glass shops at kelantan lane, they charge resonable price and the tank I have cost slightly more than a hundred dollars......:D

[Kian]

o dear...so much ar?"Scratch head"i`m buying a resun cl-280 and a ehiem 2213 which cost me up to nearly $400 =( i`m just a studenT! is this what the god wanted me to have..hmm saw one at serangoon north selling 38 smaller den yours as in shorter=)

[wei]

nice cosy balcony u have there for your shrimps haven :)

[milt]

Thanks Jackqaz for the reply, will see if my breedouts(fingers cross) correspond with your ratios. lol

[Zoombee]

Wow that is awsome setup you got there, I fined it really cool that it is outside. Is it always so hot in Singapore? I want to some day go and travel asia.:)
nice setup..i was thinking of putting a long-ish tank like yours on a shelf above my study table to just few days ago..but i was alittle worried about the weight ...seeing your tank seems to give me alittle more confidence..care to share where u bought the rackings from?

[Kian]

Quote:
Originally Posted by Kian View Post
hey milt wher you got your tank and how much you got it for?looking for one that look some thing like that so that i can diy into a few slot using plastic divider that use for "luo han" and seperate the diff type of grade or maybe use for breeding project=)

Quote:
from milt
I got it done at one of those glass shops at kelantan lane, they charge resonable price and the tank I have cost slightly more than a hundred dollars......

[thief]

Thanks Thief for the kind comments! lol Yeh it is my first time having an outdoor tank and I have learnt a lot from it. I am fully aware that I might fail to have a viable population of CRS shrimps because of the temperature and am willing to take the gamble, if all else fails, I will just have cherrys and malayan shrimps in the outdoor tank.

Yeh it is always so warm in singapore, for some of us, 24-25C is already quite chilly! The temperature is always quite constant except it may varies a few degrees between the dry and wet seasons but nothing like the weather in US. Thats why I think it may be easier to have an outdoor tank here.

Come visit Singapore one day, it is a beautiful country, modern and yet full of tropical greenery.....:cool:


Wow It's hard for me to live in that temp. I don't know celcius very good but right now my weather is about -15C or 10-30F. I'm only a freshman in highschool and I find your tank very inspiring.

Ive travel all around europe and america but it's always experiencing culture and arts. I've looked at alot of pictures of singapore and china they look just so peaceful and very "green" places.

Anyways great job so far.

[milt]

o dear...so much ar?"Scratch head"i`m buying a resun cl-280 and a ehiem 2213 which cost me up to nearly $400 =( i`m just a studenT! is this what the god wanted me to have..hmm saw one at serangoon north selling 38 smaller den yours as in shorter=)

Good to see that you are considering a chiller for your tank, am sure you will succeed well in your dream of breeding shrimps. :cheesy: Get the tank at serangoon north if it suits your needs, as my tank is custom made, it tends to be more expensive.....

[milt]

nice setup..i was thinking of putting a long-ish tank like yours on a shelf above my study table to just few days ago..but i was alittle worried about the weight ...seeing your tank seems to give me alittle more confidence..care to share where u bought the rackings from?

Hi Zoombee, I got the solid wood shelving from one of the nurseries in upper thomson nursery area, it is actually 2 pieces which I piece together to form a whole shelf. For fishtanks, make sure the wood is solid wood as compress wood will rot and give way.....
More importantly is actually the mounting of the rack. I will take more photos to show you how the shelf is mounted, I actually bought the wall brackets(4 in number) and screws from kelantan lane area hardware store as well as nuts and bolts store.....

[turtles808]

Very nice tank. I was thinking of doing something like that but couldn't find a tank low enough to look right. I was thinking of putting the inlet and outlet of the filter on opposite ends.

[Kian]

milt i tink i would bring home the long tank at serangoon north=)getting my chiller tml=)got home some A and b grade crs today^^ small and active=)after my chiller i would need to find a ph thing to keep my ph suitable for my crs=)hope my crs would survive and bring me excitment in the future=)

[milt]

Hi Zoombee

As promised, these few photos show how my tank is mounted, as my tank is in the balcony and can really be very windy at times, I took no chances and chose large brackets and screws.....

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Hope this helps..... ;)

[aberfitch]

i see you have a hang on filter. Won't your baby shrimp get sucked into the filter?

[aberfitch]

(((((((milt i tink i would bring home the long tank at serangoon north=)getting my chiller tml=)got home some A and b grade crs today^^ small and active=)after my chiller i would need to find a ph thing to keep my ph suitable for my crs=)hope my crs would survive and bring me excitment in the future=))))))))

Kian


why dont you get everything you need to get the tank ready set up and cycled before you bought the shrimp. you said you would have to buy somehting to keep the ph seady... ph is really important to the shrimp or they will die.

[milt]

i see you have a hang on filter. Won't your baby shrimp get sucked into the filter?

Hi Aberfitch, I have a sponge prefilter with very small pores which I attach to the water inlet and the shrimplets should not get sucked into it........ Every 3 -4 weeks I just rinse the sponge in old tank water and reattach back on.... I find it quite convenient as one does not actually has to clean the filter material in the main filter, the main filter therefore serves the function of a biological filter and the prefilter serves the function of mechanical filtration. Since this time my CRS female is pregnant, I will make sure I rinse the prefilter 1 week before my shrimp eggs hatches and not touch the prefilter for 1 month afterwards.....lol

[Kian]

hi aberfitch,i got 2 cycled tank already=)the long tank i`m getting is the 3rd tank=)so hope to make it the best and keep better grades=)

[Zoombee]

Hi Zoombee

As promised, these few photos show how my tank is mounted, as my tank is in the balcony and can really be very windy at times, I took no chances and chose large brackets and screws.....

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Hope this helps..... ;)
thanks for the detail shot on the bracket. its impressive really help me alot. mind sharing how much u bought the bracket for?

[milt]

thanks for the detail shot on the bracket. its impressive really help me alot. mind sharing how much u bought the bracket for?

If I remember correctly I think it is about 7 dollars apiece.....:)

[Kian]

haha bro brought a new tank and set up a few days ago..jus the same as yours but the only different is its 2ft=) will post pic when i`m free geting a low hino from a bro in aq to place it in=)cant wait to place them in!!^^

[milt]

haha bro brought a new tank and set up a few days ago..jus the same as yours but the only different is its 2ft=) will post pic when i`m free geting a low hino from a bro in aq to place it in=)cant wait to place them in!!^^

Hi Kian, can't wait to see a pic of your new tank! Wow a hino, ha ha I am still dabbling with grade C to A crs shrimps.....lol

Anyway some new updates to my tank, due to the weather getting warmer recently and a loss of 1 grade A shrimp, I have decided to install a fan a week ago. Thank goodness my 2 A+ shrimps are still alive and numerous c grade shrimps.

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The thing I like about this fan is it has 2 heads and the best part is that it has a on and off switch!
I have come up with a schedule for the fan at the moment. It is on from 7 am to about 9 pm every day and it has been keeping the water temperature from 25.5 to at most 26.8 degrees in the hottest part of the day. Like today when the ambient temperature was about 29C at 5pm, my water was 26.2C which was pretty good. From 9pm to 7am when ambient temp starts to drop, the fan is off and the temp is usually from 25 to 25.5C in the morning. So the temp of my tank water is kept rather contant from 25 to 27 degrees with most of the time being below 26.5 degrees. The shrimps definitely seem happier and no shrimps has died yet. I think the big surface to volume ratio of my long shallow tank does help in keeping the temperatures down through increased evaporation. Usually I have to replenish about 0.5 to 1 cm of water daily and I do change a bit of water daily at the same time.

By the way, my C grade pregnant shrimp has been carrying her eggs for 18 days already since the last time I post and I really can't wait for the babies to pop out!!!!:pleased: It should be anytime soon!!!!! I know it is just a C grade shrimp but for me it will really be a big big achievement after 4-5 months of waiting and it will be my first batch of CRS babies..... Will update soon, fingers crossed!:sweatdrop

[thief]

Thanks for the Update. I think it great how you are able to control the temp so well. And hopefully you will see your babies shrimps. Keep of up to date with everything milt!

[MartialTheory]

Wow! I wish I could do that back in NYC.

[Kian]

haha milt,firstly Good luck for your preg shrimps maybe by now you can see the eggs with little eye=)my B grade Crs give birth le and i can see some shrimplets^^hope they will grow to an adult.Btw milt a fan got it good and bad point well,good point you should know but bad point i wanted to point out is you got to top up your water almost every day which make me fork out the money to buy a chiller for my currently cycled tank haha

[milt]

Thank you everyone for the kind comments. lol

By the way Kian, I didn't realise your CRS was pregnant, how long did she carry her eggs for??? Congratulations by the way!!! Well topping up water for the tank is not much of a problem for me cos I just put my balcony hose on top of my tank and turn on the tap......lol

[Kian]

Thank you everyone for the kind comments. lol

By the way Kian, I didn't realise your CRS was pregnant, how long did she carry her eggs for??? Congratulations by the way!!! Well topping up water for the tank is not much of a problem for me cos I just put my balcony hose on top of my tank and turn on the tap......lol

hmm,the female that is pregnant is i brought it at yishun i tink after 2weeks or 3 it gave birth and i waited 3 days to see shrimplets,btw cant find my shrimplets today hope they are fine :undecided if i remember correctly read from some where stated that Crs carry their egg till about 23 days(about there)?correct me if i`m wrong=)

[Alesfra]

I love that tank. Really beautiful. A great solution when there isn't much space.

Congratulations.

[Kian]

btw milt you got to becareful of the ph from your tap?=)

[milt]

Thanks Alesfra!

Hi Kian, the ph of the water straight from the tank is 6 to 6.5 consistently, that is if my dipstick is accurate. I did measure one of my water hyancinth pot water with clay substrate and the ph is 7.0 so I guess the dipstick must be working to a certain extent.....
Anyway whats the ph of your tap water and which area do you stay? I wonder if the ph of the tap water all round singapore is the same?:ears:

[Kian]

haha bro i didnt measue my ph?thinking of geting those ph kit to try=)living at sengkang

[milt]

Hi guys!!!! Just wanna update that I finally got my first CRS babies!!!! The female C grade shrimp that I posted earlier in the post finally gave birth last night after 25 days of pregnancy. It was her first pregnancy after I got her 4 months ago and I am very proud of her :smitten:Average temp of tank is 26 to 26.5C. This morning after the rains, temperature dipped down to 24.2C with the help of the fan. Now its back to 26.5C.
Sorry my camera ain't good enough to take a shot of the baby. It's amazing, I can see the red head and a white line cutting across the body. I don't know how many babies there are, can only spot one at the moment.
Another happy event occurred this morning, I realised I just got another pregnant female. Wow, that's double happiness! :sunny:

[Bracun]

Congratulation!

[Kian]

lmao congrat bro haha=)sad to say but all my shrimplets are gone =( blessing for your shrimplets

[Fish Newb]

Very cool tank! I've been thinking about trying some whiskey barrels over the summer here and making outdoor container ponds basically. Grow out some fish and shrimp and stuff in them and everyone else will only see the plants growing out of it!

Congrats on the babies!

-Andrew

[milt]

Thanks guys for the kind comments...lol

Andrew--- yeh it will be interesting to have a mini pond with your whisky barrels. I think cherry shrimps will be a good idea and for fishes you should try pygmy gouramis or honey gouramis, they don't need filtration and can breath air straight from the surface. Be sure to have some floating water hyacinth to give your shrimps and fishes some much needed shade. lol

[minicooper]

Very cool tank! I've been thinking about trying some whiskey barrels over the summer here and making outdoor container ponds basically. Grow out some fish and shrimp and stuff in them and everyone else will only see the plants growing out of it!

Congrats on the babies!

-Andrew


Nice idea! I hv been thinking the same thing as you. but I will do a little bit modify on the barrels. I will try to cut a hole on the barrel's side wall. then install a tailor make kind of tank into the barrel. Then I can PEEP what is happening inside the tank when I want to...:cheesy:

[rwong2k]

oh very nice and unique tank there!

oh btw minicooper, are you from hk? how is the avaliability of crs in hk? I'm heading there soon

Raymond

[Cpark188]

Hi guys!!!! Just wanna update that I finally got my first CRS babies!!!! The female C grade shrimp that I posted earlier in the post finally gave birth last night after 25 days of pregnancy. It was her first pregnancy after I got her 4 months ago and I am very proud of her :smitten:Average temp of tank is 26 to 26.5C. This morning after the rains, temperature dipped down to 24.2C with the help of the fan. Now its back to 26.5C.
Sorry my camera ain't good enough to take a shot of the baby. It's amazing, I can see the red head and a white line cutting across the body. I don't know how many babies there are, can only spot one at the moment.
Another happy event occurred this morning, I realised I just got another pregnant female. Wow, that's double happiness! :sunny:

Hi milt, congratulation for having the first batch of shrimplets, I wonder usually how much shrimplets will produce it time and are very tiny to view at.
You must be very careful in changing water or the filter sponge. Sometime they might hide inside the sponge. Keep us update on the shrimplets and is there any kind of special food for the shrimplets. Cheers.

Alfred.

[milt]

Can everyone spot the baby shrimp????? lollollol

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Yeh I know it is really tiny like 2-3mm and only 6 days old..... I think it is a C grade since its mother is a C grade and I don't know who the father is but I love it to bits since it is my first batch of babies... Currently I can see about 5 or 6 babies loitering around the gravel so I think I must have at least 10 or more babies around since there's lots of spaces for them to hide in the tank. I have another 2 pregnant C grade mothers so I hope to have a large cohort of babies in a few months time and then I can do some selective breeding. I think the A+/S-grade shrimp in the picture is a female and I hope to get some babies from her soon too! I don't intend to get any new shrimp as I want to see what I can acheive from the current 15 CRS that I have.... :rolleyes:

[milt]

Hi milt, congratulation for having the first batch of shrimplets, I wonder usually how much shrimplets will produce it time and are very tiny to view at.
You must be very careful in changing water or the filter sponge. Sometime they might hide inside the sponge. Keep us update on the shrimplets and is there any kind of special food for the shrimplets. Cheers.

Alfred.

Thanks Alfred, I don't feed anything special to the shrimplets, they seem to find food among the gravel and moss and has been increasing in size. I feed my adult CRS some japanese algae wafer for CRS and tetrabits and the shrimplets has started to scramble for loose bits around the adults during feeding time....lol

[Kian]

bro your attachment cannot view.

[milt]

Sorry guys, could not load the pic just now, here's the pic again...

Can you spot the baby shrimplet??? lollollol

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[Kian]

haha spotted,what a contrast in the size.lmao nice adult shrimp there=)As?or S grade?haha more and more preg. female you have there good luck=) hope to see more pictures and your tank picture=).

[thief]

Wow thats a awsome photo!!! Great job. Please take more pics too! Also can't wait to see a whole colony of these guys breeding. I think this is a great achievement for you because your tank is outside.

[milt]

Hi Kian, yep I think it is a S grade CRS, its one of 2 S grade I have since 3 months plus ago, the rest of my shrimps are C grade shrimps. I hope this 2 S grade shrimps will pass the genes to the C grades and improve my stock of CRS. Only time will tell. lol

Thanks Thief for the comments! Yep I am really happy the shrimps are doing fine. I think it may have something to do with the semi outdoor freshair and breeze too. My sister's room is quite stuffy and no shrimps ever do well in her room tank even though it is in the same apartment. I find that changing 5 to 10% of the water daily each time does make the shrimp feel happier too, don't ask me how I know but after each water change I notice the shrimps to be just slightly more lively..... lollollol

[Kian]

lol your sister will be sad when she see this.

[milt]

Actually she won't be cos the tank in her room is also mine!!!! :joking:

[Kian]

lol hmm when free need go over to have a look,haha bro mind pm me your add. haha free go up view.=D

[Alesfra]

Congratulations !!!!

[belgiumshrimplover]

nice tank and beautifull shrimps also congradulations with the shrimplets

[NuttyShrimp]

Beautiful, that is a nice balcony and nice tanks :)

[milt]

Thank you guys for resurrecting my post and the kind comments. lol

As the weather got hotter and now ambient temperatures in my balcony can reach 31C, I decided to upgrade my 2 head fan to a 6 head fan.

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With the 6 head fan, temperatures are much better controlled like the other day when air temp was 30.8C, the water temp was 37.3C. For the 2 head fan, it use to be when air temp was 31C, the water temp was 38.5C and usually one shrimp will die when temp reach above 38C. After using the 6 head fan, I have not had any die offs since, cross fingers......:p I doubt the temp in Singapore will go any further up because we really had very hot days the last few weeks but even if the temp does go up, I doubt it will increase by more than 1 more degree..... As for the night and mornings, water temperatures are usually 25.5 to 26.5 with the fan on.

Anyway sad news, my only S grade female died 5 days after giving birth.....:cry:

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Actually I notice for my pregnant shrimps, they are usually quite resilient during pregnancy and have no problems giving birth but they are very vulnerable 5 to 7 days after birth. I have 2 to 3 females that have died about a week after birth, could it be that molting occurs a week after birth and they are very vulnerable during that time???
Anyway the good news is that she managed to give birth once and her genes has been passed down to my C grade shrimps....:)(If you could remember she was the only S grade I have and all my other shrimps are C grade).

Anyway I have about 20 shrimplets(the ones that are not hidden) now. I know the survival rate is not too high since I have 5 pregnant shrimps that gave birth but these shrimplets are special and I think they are the ones that are more heat-tolerant. :) Hopefully they will give birth to even more heat tolerant ones next time.

Are these my C grade cross with S grade offspring? Only time will tell.

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Here's a photo of my C grade female with a shrimplet. She looks like she is going to get pregnant again soon as her saddle at her neck region is getting fuller! lol

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I don't intend to buy any new shrimps as I want to see how my original 15 CRS do in a fan-based CRS tank. I hope to be able to have a viable population of shrimps with my current set up and so far I think they are doing okay. lollollol