I have 2 ocellaris clowns in a 20 gal
. I have had them for 6 months without problem but starting just recently one of them always bullying the other. The other one already had nibbed fins on him as a result of this.
The one always chasing the other one seems a bit larger in size. I previously bought them same size but one seemed to grow bigger and the other one smaller. The big one always chase the small one over the tank especially during feeding time when the smaller one wants to get a bite at the food he is always got chased by this bigger one back to hiding. So I normally feed extra amount now just to make sure the food will get to the bottom so that the smaller clown can have a chance to eat otherwise he will starve to death.
Anyone can shade a light what happened to them? Thanks for your help.