Good idea, but if you like predators fish like killifish are cool, maybe severums, could maybe even do catfish like me, im breeding the cory cats I got, with a 100 gallon opportunities are endless. say in the 100 gallon you had a lima shovelnose and in your 55 you breed maybe say honeycomb catfish and put the fry in a 10 gallon tank. its kinda but not really easy. you can do whatever you want. but your family cant pay for all your stuff. not saying they do, but you don't have a job(i'm assuming) and if you where a local breeder you can sell stuff on here or at your LFS any extra money is helpful. you can't sell tickets into you room you know what im saying?