nothing wrong with breeding dogs, but I hate seeing "puppy farms"
I had a 1,600$ parsons russell terrier ***** with champ blood lines, and a 900$ stud of good stock. I only let them breed once per year instead of twice. she would pop out 6-7 little obnoxious crawling, chewing, pooping, tear your house up, escape from pen rodent sized pups.
ALLOT OF WORK and the parsons russell doesnt have the attention span to care greatly for the little things. you have to do it.
I didnt get the dogs just to breed them, but they did make me around 2-3K profit once a year. cold have been more profit but adding the expense of vet bills, food and everything the little monsters destroyed it comes out to 2-3K.
but back to fish, I believe its too much hastle for the average aquaryist to breed for profit, id' just try on the small scale first...
BFE...

But Fudge Egypt