I have a spawn log but decided to post a new thread hoping more people will see this and can give me advise. My fry/juvies are almost 9 weeks old and up until now I haven't had any die offs other than when they were only a few weeks old here and there but all of a sudden they have started dying 1-2 a day for the last few days. Its mostly been smaller ones so at first I thought maybe it was due to them being runts and the larger ones bullying them but yesterday I had one of the larger ones acting very lethargic and wouldn't eat so I jarred her and she had died by the next day and today I found a large one dead in the tank. All of them are spending a lot of time either at the top or laying on the bottom and I don't have a clue what to do.
There are about 45-50 fry in a 10 gallon that gets 50%-100% water changes every day. The temp stays around 85f but sometimes the light makes it go up to almost 90. I feed them frozen blood worms, frozen brine shrimp and Hikari tropical micro pellets(which I'm worried may be the problem). I checked the Ammonia and it was up(maybe from the dead fish?) Any advise would be greatly appreciated.. I've worked so hard raising these babies and I'd hate to loose them all now :(