Sterba Cory group slowly dying

[Joe80]

Keep a good eye on those platys at feeding time. Those corys look underfed with sunken bellies. And the dorsal fins look like theyve been nipped.

Ok yes will do. After all the surface flake had been eaten, the platys have learned that they can get more food on the bottom, so they do steal the corys food.

One platy gets essentially aggressive with the other platys....never seen her attack a Cory, but they do get scared off the food.

Actually I recently bought some better food for the Corys. I got some micro veggie pellets and some fine bug bites. They seem to be better because the corys can eat them quickly, a lot quicker than the larger pellets I was using. Friday is blood worm day, they love worms.