dying fry.......

["clestyk" <clestyk at email_msn.com>]

Hello all !!!
I need some wisdom.I have a rearing tank that contains Aphyo. Striatums and golden wonders.They are about 2 weeks old.My problem is that the golden wonders are dying off.They don't appear to have velvet from what I can tell as I pullrd one out that was dying and look ay him with a flashlight.I don't really know how to explain their symptoms.Golden wonders are surface dwellers,but when they get sick they are on the bottom of the tank.They try to swim back to the surface,but start freaking out and Doing zig-zags and flips and end up back on the bottom.I've added Quick Cure which contains formalin and Machilite green.I don't see anything wrong with them on the outside.They were all fine a few days ago,too.I have checked the pH,ammonia,and nitrite to be sure also and tests turned out fine.Do any of you all know if the ages of my breeders my be a factor ?They are about 2 years old ?This is the only thing I can think of because(as of now) the Striatums look great.
Thanks for your time and ANY feedback is GREATLY appreciated !!!!
Carrie


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