I was tired of my lazy betta fish and decided to get him some new scaly friends. They turned out to be under water fiends! They are three fancy male guppies, and they are some brutal fish. They bite each other, they bit him. One of them is trying to starve the other buy eating all their food. I was looking at them one day as one of them swam up to the other fish and took a bite out of it's friends tail. They are also will try and steal my betta's food (which I don't think they can even eat or they seem unable to every time I've seen them try.) Their also picking on him as well (He goes and hides in his log, he's a coward fish I swear). What do you do when fish aren't getting along? Should I see if the store will take them back or, am I stuck with dealing with them. He's had other friends before (3 neon tetra's that got along great with him and died during a 800 mile move in December).