What is the definition and composition of brackish water?

[Rupert]

What is the definition and composition of brackish water? I would like to try and breed some Mosquito Shrimp, [Caridina gracilirostris de Man, 1892] or Caridina gracilirostris. And under stand that they need brackish water to full strength saltwater for the larva to develop. So what do I need to get achieve brackish water? The saltwater I assume is easy.

Would the same conditions suit Wood Shrimp & Yamato Larva?

[ralp]

Hi Rupert,

you did not miss this thread (http://www.shrimpnow.com/forums/showthread.php?t=297) - or did you? You find some helpful tips for breeding red nose/mosquito shrimp there.

Regards. Ralp

[silane]

Brackish water is water that found river mouth which contains more salt then freshwater but less has less salinity the seawater.

[Rupert]

Brackish water is water that found river mouth which contains more salt then freshwater but less has less salinity the seawater.

Thanks for that, I can see the term “brackish" used quite a bit but with no definitional decomposition of what it meant, but looking at your description it is probably variable in that river mouth water must fluctuate considerably

[Rupert]

Hi Rupert,

you did not miss this thread (http://www.shrimpnow.com/forums/showthread.php?t=297) - or did you? You find some helpful tips for breeding red nose/mosquito shrimp there.

Regards. Ralp

Hello Ralp,

I saw this thread after I bought the Mosquito Shrimp, it is good reading, I have some pregnant Yamato as well, then yesterday I found out about my Wood Shrimp go through the same larval process.

So I will have 3 kinds of shrimp that reproduce in the same manner and hopefully in the same conditions [saline water], but guaranteed not at the same time.

The saline water I understand, but the term “brackish” and what it made up of seem vague.

Thanks

[silane]

Thanks for that, I can see the term “brackish" used quite a bit but with no definitional decomposition of what it meant, but looking at your description it is probably variable in that river mouth water must fluctuate considerably

Yeah, agreed, salinity level of brackish water varies according to tide, rainfall and perhaps more factors.

Are you preparing to breeding Mosquito, Wood Shrimp and Yamato shrimp?

[Rupert]

Are you preparing to breeding Mosquito, Wood Shrimp and Yamato shrimp?

Yes I am thinking about it as I have the shrimp, the Yamato are already carrying eggs and the others will probably eventually, carry as well, so might as well have a go.

The questions in my mind at the moment are:
• Can Yamato, Wood & Mosquito shrimp larva exist & grow with the same saline water conditions?
• How do I deal with shrimp producing eggs at different times, how many multiple tanks does this mean and where will I get them and keep them?
• Can I commandeer / get my daughters nano tank?
• Would betta tanks [Glass Jars] work?
• Will the larva survive without chilled water or aerated water?
• Even if I am successful with Yamato, I don’t need any more.
• If I let the shrimp release the eggs in my large tank will I get to them before the Guppies? Probably not.

just a few items to ponder on...

[silane]

Yes I am thinking about it as I have the shrimp, the Yamato are already carrying eggs and the others will probably eventually, carry as well, so might as well have a go.

The questions in my mind at the moment are:
• Can Yamato, Wood & Mosquito shrimp larva exist & grow with the same saline water conditions?
• How do I deal with shrimp producing eggs at different times, how many multiple tanks does this mean and where will I get them and keep them?
• Can I commandeer / get my daughters nano tank?
• Would betta tanks [Glass Jars] work?
• Will the larva survive without chilled water or aerated water?
• Even if I am successful with Yamato, I don’t need any more.
• If I let the shrimp release the eggs in my large tank will I get to them before the Guppies? Probably not.

just a few items to ponder on...

My thought is,
Yamato, Wood & Mosquito shrimp larva can exit and grow with same saline water condition with different succeed rate. These 3 species of shrimp do need chilled water like 25C to develop, a tank with fan will help. A betta glass jar seems too small to hold hundreds of larva, a large plastic/glass container will do the trick. Depending on larva to water ratio, aeration may not be necessary, I used to have 20 green shrimp shrimplet growing up in a 1 feet tank without aeration and filteration, no WC for 1 month, no fan, they were not fed but supply with strong light to help algae/plant growth. They growth rate surplus fries of the same batch in another tank with feeding, filteration and water change. Seems to care less is better for them.

:)

[Rupert]

Thanks, I hope less means more? Anyway I have the marine salt a plastic tank with some nutrient rich water in an attempt to get green water. Once I have that established I will transfer it to some other containers and use the tank to house the egg carrying shrimp until they release the eggs and then see who I go.

[gnatster]

I have no first hand experience but do have some thoughts on the issue.

Placing an egg laden female in a salt rich environment may cause her to drop the eggs if not kill her. These shrimp live in FW niche and the larvae are swept downstream once hatched to a more saline environment. I would think a better plan of action is to house the berry laden female in a separate tank and have a full strength established marine tank also. Once the eggs hatch remove the female and start doing small water changes, replacing the FW with SW on a regular basis until full salinity is achieved. Once the larvae morph into small shrimp as we know them reverse the process using FW on changes until the salinity is reduced to 0 or there about.

[silane]

gnatster,

Agreed with the steps you said, I guess we have to mimic the great nature cycle in our tanks.


Rupert,

Fastest way to get green water is use of sunlight, my tank used to turn pale green after 4 days with just little bit of liquid fertiser when I placed it at the window. But the water temperature will cause problem to shrimps.

[Rupert]

Thanks for that, I have had a small plastic tank sitting near the window for the last week, ironically it didn't give me green water, but I have been adding in some algae bits from my tank.

I have the marine salt and was thinking about when I should catch my egg carrying Yamato, but no sooner do I make plans and they decide to hide! So I now scan the water surface regularly to see if there are any larva. Then will see how it goes.