I have some 3 week old tramitichromis sp "intermedius" and 5 week old labeotropheus traverse (sp) "mpanga red" fry that Ive been loosing a couple every day. They are both in their parents tank inside breeder nets. Nitrate is just over 20, nitrite 0, ammonia 0. I dont get it. Im feeding them crushed brine shrimp and crushed spirulina flake. could this be an issue with the breeder nets? I had the mpangas in a breeder "box", a floating plastic box with flow through, and never lost a fish. I move them in here and loose 3. I dont get it.