I'm looking to add another semi aggressive fish to my tank if possible. Right now I have 1 male betta, 2 dwarf gouramis, rainbow shark, and a bumble bee catfish, in a 10 gallon tank. Am I overstocked? Just right? Or is it possible to add one more semi aggressive fish to my collection of destroyers. So far no one has taken a beating or really tried to punk one another to my surprise. Amazingly they have all been getting along for awhile now. Any suggestion on another fish or am I overstocked? If possible to add another, which would you guys prefer? Thanks in the future and I hope I still have room mauhahahah!!!