Dying fry

Dying fry

Postby Armadus » Thu Jan 12, 2012 6:29 pm

Hello,

I'm having a bit of an issue with Maroon fry, there are quite a few that died on day 3. I'm going to try to describe what I see under a microscope since I can't take any pictures. On the side of the fry, along the spine, there are what look like black snowflakes. The patterns of each flake are different and the flakes are smaller closer to the tail and bigger closer to the head. They look like black nerve clusters. Below the spine but in front of the stomach, there are also black spots which look like cheetah spots.

I'm seeing the same patterns on most of my dead fry. Can anyone shed light on what the marking are?

Thanks!!
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Re: Dying fry

Postby Suzy » Thu Jan 12, 2012 6:50 pm

I can't help you with the markings. But, what are you feeding them? Have you raised them before without this issue?
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Re: Dying fry

Postby Armadus » Thu Jan 12, 2012 7:00 pm

Hi Suzy,

Right now I'm just feeding rotifers. This is the first batch from the Maroon pair so I'm not sure if its a problem with broodstock.
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Re: Dying fry

Postby Suzy » Thu Jan 12, 2012 7:04 pm

Are they able to eat large strain rotifers? I am going to try the small strain if mine ever spawn. I read somewhere here they do better on those.
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Re: Dying fry

Postby Armadus » Fri Jan 13, 2012 2:28 pm

Are Maroons different than Perculas? Are fry smaller and require smaller rotifers?
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Re: Dying fry

Postby Luis A M » Fri Jan 13, 2012 5:13 pm

Armadus wrote:Are Maroons different than Perculas? Are fry smaller and require smaller rotifers?

I have noticed recently that GSM have indeed smaller eggs and larvae.Perhaps I will document this with pics.
Though any rot is still fine for them.Perhaps they take a little longer to take bbs :?
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Re: Dying fry

Postby Ben » Mon Jan 16, 2012 6:23 am

How many fry do you have
Usually they have larger batches than some other clowns and need a higher concentration of rots
And eat them quicker to
I would try doubling the amount of rots and see what happens
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Re: Dying fry

Postby Armadus » Tue Jan 17, 2012 6:54 pm

Thanks for the replies! I've got another batch hatching tonight so I'll try to increase the rotifer density!
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Re: Dying fry

Postby Suzy » Wed Jan 18, 2012 12:00 pm

Sweet! Keep us posted? I have a pair I am waiting on to get started!
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Re: Dying fry

Postby Armadus » Thu Jan 19, 2012 9:33 pm

So the hatch didn't happen for two nights... Last night I got a handful of fry and they seem to be doing well. Hopefully ill be able to keep them alive.
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Re: Dying fry

Postby Suzy » Sat Jan 21, 2012 3:36 pm

Great!
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Re: Dying fry

Postby Armadus » Mon Jan 23, 2012 10:20 pm

Hatch went OK but now I'm having rotifer production issues. LOL. I'm thinking there's something wrong with my plankton so I ordered new cultures from Florida Aqua Farms. Once I get those going, ill get another batch of rotifers and try it again. :) I've been meaning to put up a post to figure out why my rotifer count keeps going down, but I'm going to try to troubleshoot it myself first. Fingers crossed! :)
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