Not So Hardy

Yesterday I noticed that my sole remaining Zebra Danio was missing a small part of its tail and that it was not looking too well. This morning more of its tail had been eaten and it was swimming at the bottom of the tank. I thought I might have a nipper in the tank, but when I got home tonight I found him dead on the gravel, half eaten. Guess he was not well. It appears fish have a strange way of looking after their own.

I had better keep my eye on one of the Leopard Danios, as it is not looking so happy either. The others appear to be fine and are swimming around happily.