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Thread: CRS Breeding Information?

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    Default CRS Breeding Information?

    I would like to hear your experiences breeding this shrimp. Any tips will be very helpful. Things I'm specifically interested in:

    Tank size
    Temperature
    pH
    How many to start with for a breeding colony.

    And anything else you might think helpful.

    Thanks in advance.

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    Hi Robin,

    There is a lot of tips discussed and posted in the previous threads by fellow hobbists. You might want to just do a search and consider their setups.
    Regards,
    Sim

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    Senior imi_sky's Avatar
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    just a quick reply.

    tank: any size is good ( as long as the water conditions fonr jump )
    ph: 6.6-7 but they like it more acidic
    temp: 18-25dC they prefer it around the middle roughly 23dc
    good colony to start: 10

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    I was hoping for some consolidated info to compare but I'll search too. Any more data points folks?

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    Iíve been keeping crystal red shrimp for nearly a year now. I started out with some low grade crystal reds from a couple US hobbyists and kept them in a 5 gallon tank. They seemed to do well but did not breed at all even though a few females did carry eggs for short periods of time. I eventually moved them all to a 20 gallon tank and had it heavily planted with DIY C02 and they breed readily and I ended up with quite a few offspring from each batch.

    A few months ago, I imported roughly 35 very high grade crystal reds from a hobbyist in Singapore and introduced them to my existing breeding stock. Itís been a few months and Iím finally seeing females carrying eggs. Iím excited to see how the offspring turn out.

    I have quite a bit of experience with cherry shrimp and much of it translated to the methods I used with my crystal reds. However, Iíve learned a few things along the way that may be helpful to people that want to give crystal red shrimp a try. Crystal red shrimp are pretty easy to keep, but they will do much better if you do a few things differently compared to cherry shrimp.

    Here is what has worked for me and what I suggest for other people if they want to try their hand at breeding crystal red shrimp

    1. Tank size should be at least 20 gallons. I did not have much luck breeding them in smaller tanks.
    2. Temp should be between 71-75F. Many people will keep crystal reds with cherries at higher temps (78F+), which is fineÖbut crystal reds display the best colors at lower temps and they tend to breed more readily at lower temps. I found this out after experimenting and having a lot of females carry eggs at 78.5F but very few off spring.
    3. Moderate water hardness seems to work the best for robust breeding and coloration.
    4. I highly recommend the addition of live plants to maintain good water quality and a natural environment.
    5. Sponge filters are the best since they do not pose a danger to baby shrimp.
    6. PH of 7.4 has worked well for me even though Iíve heard of breeders having success in acidic environments as well. Iím fairly certain crystal reds do NOT do well in very alkaline conditions.
    7. Keep up with water changes! Crystal Red shrimp are HIGHLY prone to nitrate poisoning and they need good water to maintain good health and molting. I do weekly 30% water changes. I use plain tap water (moderate hardness, PH 7.6) and I treat it with declorinator (Amquel+ and Novaqua).
    8. I use a little DIY Co2 just to keep the plants healthy and it helps to lower the PH slightly. Co2 is not necessary for successful breeding and poses little threat to crystal reds when used in moderation.
    9. I use full spectrum lighting...10 hours a day on a timer.
    10. I DO NOT dose liquid iodine as the shrimp will get all they need from a proper diet.
    11. I feed them HBH Vegetable Wafers and HBC Crab & Lobster Bites exclusively. Any invertebrate food will suffice as long as it does not contain any large amounts of copper (READ those labels!). I will occasionally drop in a piece of boiled vegetable (squash or spinach). I feed my shrimp once a day in very small amounts.

    The bottom line is you can keep Crystal Red shrimp in similar conditions as other common freshwater dwarf shrimp. However, the keys to successful breeding will depend heavily upon temperature and water quality.

  6. #6
    amber2461
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    Wow vinnymac, thanks for giving away your 'secrets' Appreciate it very much indeed, will keep that in mind if and when I can afford to have some CRS in my possession.

    cheers

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    Thanks for that. Very helpful! Anyone else have anything to add or thoughts about how you successfully breed CRS.

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    here is my experience with CRS.

    at least a 5g. i had some CRS lower grades in a 3g before. they lived ok, and did manage to breed for me 2 times out of 5 months, which was actually not alot..so heres the detail. i made another 2 tanks, 5g and 9g tank for my CRS
    bought some S grade CRS and had them all in the 9g tank.

    the 5g tank was ment to be a selective breeding tank. so its still being set up. while the 9g tank has the following conditions

    Ph:6.6 ( with diy co2 ) although im thinking about changing it to using peat moss, as its more stable
    Temp: 23-24dC the reason y i use less then 25dc is because my tank is small, and the tempurature will jump due to my room temp. so its better to have it set lower then at 25 dead on
    Kh: 4dkH is what i have mine at.

    of course ammonia, nitrite is zero. what people dont notice and give credit is the CRS's hardiness if they are given the right care. a CRS tank can actually have up to 10ppm of NO3 and they will still do fine. they are not as weak as most people think. also i think MOSS is neccessary in a shrimp tank. due to its ability to be able to absorb NO3 at a high rate. and provide shrimps with enough cover and things to hang onto. i find bare bottom tanks to be extremely bad for any shrimp and so i dont recommend it with CRS either. as ive heard from japanese breeders that it does stress the shrimps out.

    i do water change everyday because i find that my shrimps become a little bit more active with each water change. maybe its due to the water conditions but i dont seem to get a change in it before and after the water change. so my guess is..its new water^^. water change is only 5% so its not really that much of a change just enough to give them new water everyday. i also find that my shrimps grow up alot faster with the constant water change compared to my friends shrimps that where born a week or so earlier than mine.

    i currently have roughly 60-80baby shrimps all about 2mm-6mm big all in a 9g tanks ( soon to be spred out into a 10g ). along with 4 female CRS carrying eggs every month. even after they have just hatched all there eggs, it takes about 3-5days roughly to see them carrying eggs again. my CRS keeping has been about 1 year now.

    i hope this helps.

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    myles (25th Apr 2011)

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    Yet another great response. Thank you Imi_sky, that helps alot.

    Between the two major responses I see one person says 20 gallon or larger verse a 5-9 gallon tank being fine as well. Hmmm? Let's hear some more great responses and advice!

  11. #10
    aquafever
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    ada soil
    ph 6.5
    gh 9
    tmp 26

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