I've finally got control of my tank and I'm ready to buy some new fish. I have one white convict that has been with my for 1 year. It's all by its lonesome in a 55 gallon tank. I've tried other cichlids but have some trouble with them fighting. What are your suggestions? I live about 2 hours from a PetCo, which is pretty much my only option. I am traveling this weekend (5 hours from home) and I know there might be a better selection there, but wasn't sure how long they would last on a trip home.