Unfortunately, I put the divider into the tank too late. After only a few hours, the female red devil is pretty badley beaten. I have moved her to a 20G tank. She is lying on her side, still alive, but barely.
Any ideas to save the fish. It's very frustrating since they had spawned, without incident, on several occassions. Right now it's wait and see.
A photo of the culprit is attached.

Any ideas to save the fish. It's very frustrating since they had spawned, without incident, on several occassions. Right now it's wait and see.
A photo of the culprit is attached.


