Would feeder guppies do ok in my 125 gallon tank? I found some that are very kool looking and was wondering how they would do in my 125 gallon tank. I think that they are almost the same thing as fancy guppies(correct me if i am wrong) but i have heard they are easy livebearers to breed and thought that it might be kind of fun to do and then sell them as tropical fish when they are bigger. Would this work? I can buy two dozen for four u.s. dollars. Is that a good deal? All advice appreciated.