Danio Advice

[Amiee]

I have recently bought some Danios, Leopard and Zebra. I havent got much experiance on these fishes therefore asking for some advice. Some of the leopard ones which I have had now for just over a week, have became very large around the stomach, they seem very healthy and are accepting food and are always active. I am not sure if they may be full of roe? Some of the Leopards are going the same way, and the Danios are always chasing one another. All water parameters are okay.

I lost one leopard danio on the second day from bringing them home to dropsy which I changed the water and treated the tank to be sure.

Thanks in advance.

Amiee