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egg 'behavior'



Hello,
I have a pair of Aphyosemion caudofasciatum 92/11 that were proving
nearly impossible to breed. They were mature, but every single egg I
took out (and there were plenty) fungused. I gave up for awhile, keeping
the pair in a divided 5 gallon. The female jumped the barrier and they
seemed peaceful enough together, so I removed the barrier and left them
on their own. Soon, I found fry, growing rapidly in with the parents. I
tried collecting eggs again, using tank water from the parents' aquarium
for incubation. Everything fungused. Left on their own, I got more fry.
Now they're in a thickly planted 10 gallon. I can see perfectly good
eggs hanging, and developing, in the long roots of some water sprite.
My gift horse has interesting teeth. The only explanation that I can
suggest for the picked eggs fungusing might be my fingers (time for a
manicure) but I can't see why caudos would react differently than
ogoense or other killies. Does anyone have suggestions as to why the
eggs react so differently in the different environments?
Gary
Ps the temperature is the same in both incubating containers and tanks,
as are pH and hardness.