Hi. I want to add to the list of my aquariums 3 55 US gallon tanks. And a stand that holds all three. But I want the fish to pay for their new homes afterwards. I want to breed the fish in these 3 aquariums to so that I get back what I spend. I am a college student and you know the rest. What could be the best and easiest fish to breed. And can it be done, to get the money back by breeding the fish.