I like breeding Bronze corys and there are 2 LFS nearby that will buy my fish for $.75-$1. I only have 2 10 gallons though... I was thinking maybe I could buy a big 20 gallon tub and add a heater and sponge filter. I already have sand. So I was think I could use the 1 10 gallon for 4 adults, the other for the very small fry, and the tub for growing out. I probably spend $20 per month on my fish. I can sell bronze fry at 3-4 months of age. Would they pay for themselves or even have some profit? What are your thoughts?