This has been discussed on this forum before, the general concensus is that it is not the best idea. Just adding nutrients and waste to the environment. It was also pointed out that if you do any swimming or wading you might not like stepping on fish parts, some of which rot slowly and some, such as with catfish, that are sharp.

"I love living. I have some problems with my life, but living is the best thing they've come up with so far." � Neil Simon,