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My latest batch of zebra's are starting to hatch, there are 21 of them, and I've started to notice that on quite a few threre is what looks like a small dot of fungus on the yolk sac. I've seen this happen to one fry before and within about 10 hours it was engulfed and dead.

Any ideas on how I can stop this from happening. All I can think of is a light dose of Myxazin, but I don't know how dangerous this is.

cheers

rob

You can try methylene blue, which people here have been using on corys. See this post.

Cheers HH

Just hope my LFS has some, I live in the back and beyond, so my closest LFS is a garden centre...HHMMM

Here's hoping, how about brushing the fry with a fine paint brush?

ta rob

Hi Rob!

Just to know, are the eggs still with the male, in this case he will keep the egg clean and avoid such thing to happen.
Otherwise with a seringue you can try to suck the inside of the eggs if he turn white, you can brush it if it is still alright. Usually if the air stone is correctly place and strong enough, this should not happen....

Cheers
Yann

hi Yann

No the eggs have been removed from the male. I left some with the other male(the previous spawn), and for some reason the other zebras seemed to take a disliking to them and killed several of them.

SO I removed tham all this time and placed them once again in the breeder with an air stone.

I've now noticed that the aggs are not actually covered in fungus, but some of the jolk sacs are ruptured. It was a clutch of 21 and so far I have lost 3, so maybe it's the law of averages. The others seem to be doing ok. So I will keep my fingures crossed.

This is this particular females and males first spawn, so if 18 survive, they're not doing too bad.

cheers again

rob

rob,
You are doing fine 18 eggs left, not bad much better than the last one you had..... air stone "but not too strong" and keep the tank very dark would help, the fish should be hatching soon so keep the camera handy.