Anyone keeping Fish for food?

[BeardyMan]

When I finally move have plans for aquaponic set up, but with crayfish instead of fish. Prefer crayfish, and the wife won't eat fish unless it's in finger form or has a picture of the dude with the marvellous white beard on it. Downside is, if I remember correctly, that they may need additional food. If you live near a water source, do try to ensure that none of the little blighters escape one night...

Of course, could always have a twin tank set up, grow some little fishes to feed Claws. Win win, unless you're a fish I suppose.