Let's say you get a breeding pair, Zack, of a particular fish that people actually want. You get fry and by some miracle some make it. You feed them and change their water and keep them alive for, say, six months for them to be big enough to legitimately sell, and, especially to sex, so that someone will want to buy them. There are virtually no local fish stores giving credit for fish anymore, so your only option is this forum or a CCA auction. If you haven't noticed, our fish don't sell for near their price in a fish store. So maybe you sell two or three fish for maybe $10 for the group (two if they are a pairing fish; three or more if they have harems. Occasionally you'll have a spectacular enough male fish that someone will want just that.) If you break that down by the number of days it took to raise them, you're making 10 cents a day.
So breeding is fine, but making money is unlikely. If you're serious, you should talk to Matt or Tony to find out a particularly desireable fish whose fry would be valuable. A lot of the easiest to breed are over-represented in the club and you won't even be able to give them away.
