my convict cichlids spawned about 2 months ago. Within the last week or so they are dying one by one and i dont know if this is normal or not. They are in their own tank(20 us gallon long) and all are eating and appear to be healthy. Water reads 0 ammonia 0 nitrite nitrate always less than 15 ph 7 water change 25% twice a week. Fry are between 1/4 and 1/2 inch long.

Maybe it is a natural selection... Normally when they die off no matter how well they are cared for, there is a genetic reason... Just a thought..

that is kinda what i thought too. Thanks

Start daily water changes..perhaps their growth is pushing your current regime. How many in the tank? How big?

When i bred convicts i had a few deaths but not a major percentage

Are you feeding them small enough food. Crushed flake is a good food.

Also are the overcrowded? maybe they are bullying each other, how many is what size tank?

that is what i was thinking. i thought they were too small to start bullying but maybe i am wrong. there were about 40 in a 20 usg long but i am down to 15. none are over a half inch. most are 1/4 inch. tank has a lot of caves and cover

the thing about breeding fish is that the resultant fries, amazing, vary hugely in size. When i bred convicts, the largest babies were 4 times the length of the smallest, so bullying is a defintate possibility