I was wondering if a platy is a good hardy fish. I have seen some platys with some cool colors. I even saw a purple one that I liked! If someone would tell me what kinds there are and if they are good and at most pet stores. I have a 29 gallon tank that I would like to put them in. I have 1 blue gourami, 2 female mollies, 2 mickey mouse platys. Thanks for your help!