/agree, go buy a cheap 10 gallon or something, when I got my Black it was tiny, still had its egg sac. The store had two of them in the tank so I assume they got along well together. But i kept him alone in a 20 gallon tank till he was about 5 inches. Then when he got to about 8 inches i added a 2.5 inch peacock bass. I got rid of my black when it was about 14-16 inches long, i wish i never did. It was an awesome fish.