Quote Originally Posted by foodchain
Isn't a fishless system just Hydroponics?

Anyway...GREAT news. I have my first baby fish in the outdoor ponds spotted this week. Bright orange at 1/4 of an inch.
Congrats you're a father!

Well, of course it would be hydroponics. Technically, the systems we have are recirculating aquaculture systems with a hydroponic component.