Bully

[Elisabeth]

Hey there,
I have a really vicious pearl gourami. He's always bullying the other fish and nipping their fins. I think he may even have caused the deaths of a couple of fighters and a few guppies. Is there anything I can do to stop his anti-social behavior - I'd rather not get rid of him unless I have to
Liz

 

[Amadaca]

Unfortunately, you can't discipline a fish as you would a dog!! Really, the only alternative is to move him to another aquarium, if you have one, or are willing to buy one, & restock his new home with tankmates that are less likely to be harassed.

Otherwise, you are just going to have to make a decision as to which takes precedence, your prized Gourami, or the rest of his tankmates. Remember that stressed fish are also more susceptible to disease.