Amano Shrimp Eggs

Discussion in 'Inverts' started by Dan Crawford, 19 May 2008.

  1. Dan Crawford

    Dan Crawford Founder Staff Member

    Messages:
    3,266
    Location:
    Daventry, Northants
    Hi guys, one of my largest Amano shrimp is heavily laidened with eggs and i'm wondering how to get them to hatch and raise them up? i'm happy to set up another tank and i am guessing that it will need to be semi-saline or somthing but it's gotta be worth a shot? any thoughts?
     
  2. daniel19831123

    daniel19831123 Member

    Messages:
    736
    Location:
    Blackpool
    you need to transfer the female into a fresh water tank when the egg first appear keep her there till the eggs hatch. then remove the female and increase the salinity of the tank to 35ppm. Filter sponge is not neccessary if you are keeping up with your water changes and you have to feed the newly hatch shrimplet with either green water or something really small. You can also use marine filter feeder food for this purpose. Once the some larva evolve and changes colour from orange to clear and adopted an adult figure then you can lower the salinity to 17ppm and then gradually lower it to freshwater again once all the larva is completely evolve. That's the brief summary. You can get more by googling it. I've found some really fantastic journal online but I can't remember the add
     
  3. LondonDragon

    LondonDragon Administrator Staff Member

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    10,283
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    London
  4. Dan Crawford

    Dan Crawford Founder Staff Member

    Messages:
    3,266
    Location:
    Daventry, Northants
    Nice one guys! i'll check those links out, seems like something i could handle, i'll keep you informed......
     
  5. daniel19831123

    daniel19831123 Member

    Messages:
    736
    Location:
    Blackpool
    The first link is one of the better one. That's the one that many home breeder had reference to.
     
  6. Dan Crawford

    Dan Crawford Founder Staff Member

    Messages:
    3,266
    Location:
    Daventry, Northants
    Cheers guys, i've just had a read through and i recon i'll give it ago. :D
     
  7. tanker

    tanker Member

    Messages:
    102
    Location:
    Malaysia
    so how does it go now? successful in breeding it? :D
     
  8. Dan Crawford

    Dan Crawford Founder Staff Member

    Messages:
    3,266
    Location:
    Daventry, Northants
    Well, by the time i'd gotten round to having a go i'd lost here somewhere in the tank and i've been down the road of ripping the scape apart for the catching of livesock before and it pains me so not this time i'm afraid but i'll certainly have ago when i see another in condition.
    :D
     
  9. SunnyP

    SunnyP Member

    Messages:
    130
    I have just found one of my females is carry eggs. They are a darkish orange/brown colour at the moment. It is hard to make out each individual egg unless you get really close to her.

    When should I move her to another tank?

    Also I was wondering how do you work out how much salt you add to make it to the 35ppm concentration. Is just the of 1ppm = 1mg/L ??

    And also, to make the green algae water you need have strong light, oxygen and moderate nitrates??

    Cheers for any advice.
     
  10. JamesM

    JamesM Member

    Messages:
    1,913
    Location:
    The BIG End, South Wales
    DSCF2336.jpg

    Here's my only female... poor thing, she's forever pregnant :lol:
     
  11. Joecoral

    Joecoral Member

    Messages:
    694
    Location:
    Neath, South Wales
    Thats a huge increase! What is that, an SG of 1.025 or something like that? I though inverts were extremely sensitive to change in salinity, or does it not matter if the eggs are unhatched?
     
  12. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    This is a very good guide to raising amano young, fairly simple method in comparison as well.

    Ade
     
  13. SunnyP

    SunnyP Member

    Messages:
    130
    Just wondering if you can use API aquarium salt to increase the salinity of the water?

    The guide provided by Wolfenrook is good but I would like to know if the food used to feed the zoes is enough for them to grow??

    It seems I'm not that far from my female releasing her eggs as I am now able to see the zoes eyes so I am preparing a spare tank to grow them.
     
  14. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    Wrong kind of salt bud, you'd need marine salt.

    The guy who wrote the guide claims that the food used is plenty, but I have read other guides that fed their zoes using liquizil brineshimp food.

    Ade
     
  15. SunnyP

    SunnyP Member

    Messages:
    130
    My amano hatched her eggs last night. Some are moving vertical phototactically and there are others that are lying on the base of the tank, still. Hoping some of the still start moving soon as then I can transfer them into a breeder marine tank.

    Just a quick q. I am going back to uni in a month and need to tank take the tank with me, so would it be possible to move the zoes about a 2 hour journey to Manchester or would I expect them all to die??
     
  16. SunnyP

    SunnyP Member

    Messages:
    130
    Been nearly a week and have only got about 15 zoes that are left in my tank. Working hard to make sure no more die. Hopefully my first breeding experience will be successful.
     
  17. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    If that tanks a is a freshwater one, I'm afraid that your zoes are doomed bud. If they survive in freshwater then you simply do not have actual caridina multidentata, but rather a similar species.

    Ade
     
  18. Egmel

    Egmel Member

    Messages:
    724
    Location:
    Guildford, Surrey, UK
    I've never bread these but should the eggs be in marine environments or just the zoes? How does this work in the wild?
     
  19. SunnyP

    SunnyP Member

    Messages:
    130
    From what i've read the zoes should be put into full marine water as soon as they hatch from the mother. The mother should be removed before changing to full marine. As the zoes begin to metamorphise and develop into juveniles the salinity of the water should be brought down to brackish conditions and then back to freshwater.

    There is still some uncertainty of what happens in the wild when the mothers are breeding. I think the females travel out to currents which lead to the sea as the eggs become close to hatching time. When the eggs hatch, the current carries the zoes out to sea and begin to develop. As they develop, being able to free swim, rather than phototactically moving vertically, they begin to travel to areas of lower salinity(brackish waters), moving closer into freshwater areas. As they mature to young adults they would return to freshwaters and the process would start again.



    None of my zoes are in freshwater. I changed the water to full marine water a couple of days after I couldn't see an increase in the no. of hatching eggs. Doing 15 to 20% water change every 2-3 days. Feeding them liqifry No1, designed for egg laying fish. Feeding them about 3-4 times a day. Lights are on when indirect sunlight is low.
     
  20. Egmel

    Egmel Member

    Messages:
    724
    Location:
    Guildford, Surrey, UK
    That's a nice comprehensive and clearly understandable reply, Thanks :)

    Good luck with your remaining 15 :D
     

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