I have one that I use to catch rain water that I thought about setting up with some tilapia to winter them. Seeing all these intricate setups is disheartening though. Just thought about putting a couple aquarium filters and heaters in/on it...
I don't think I agree with the comment about if you wouldn't drink out of it, don't put fish in it. I mean, I wouldn't drink out of my pond....
Sean
I'm looking at it from a chemical standpoint. If I can't remove the fertilizer residue to the point where I'm comfortable enough to drink from it, I'm not sure I want fish in there, either.