larvae keep dieing

[Just Clownin Around]

i have been breeding clowns for a few months now. some batches do good and then some i lose the whole batch. the last four batches i have lost the whole batch for some reason on day three. in the morning they are hunting and in the evening they are dead. the tanks are loaded with rotifers so i know its not that. the only thing i have changed is i am using instant algea. maybe that my problem. any help or suggestions would be great
rich

 

[Tomoko Schum]

I'd check the dissolved oxygen level and also the ammonia level of the larvae tank water.

If you have a large number of rotifers, they can deplete oxygen rather quickly. I lost a whole batch one time and it occurred in the morning. They were fine the night before. I had a very large amount of rotifers and live phytoplankton in the larval tank. At night the phytoplankton also respires consuming oxygen and exhaling CO2 just like rotifers and clownfish larvae. I limited the number of rotifers and the problem never returned.

Tomoko