I am getting different responces. I don't want my fish to be unhappy. I would rather give them back to house of tropicals and get different fish. What size talk would I need to keep ballas in 55, 75, or 100? I can't get a 55+ tank until around Christmas, but I am getting a 30gal tank very soon. Hopefully It can manage them until I can get a bigger tank. What should I do??