I have always wanted to have baby fry in my tank one day just like my sister. On morning she woke up to a nice batch of molly swordtail hybrid. So i was thinking of breeding fish and selling them for better prics than the expensive pet stores. Well i was thinking of getting a 20 gallon tank to keep the female in with a 10 gallon baby tank. Also a smaller 10 gallon for the males since i am going to get 2 male for every 4 females. with will leave me with 20 females in the 20 gallon and 10 in the 10 gallon. So i was thinking about letting them breed naturally and then raise the fry and sell them to the pet store or let people buy them for reasonable prices. Do you think it would be good for funding a new fish tank?