violetmadder on Nostr: Aquaponics is when you hook up a fish farm to a hydroponic farm, and use the waste ...

Aquaponics is when you hook up a fish farm to a hydroponic farm, and use the waste from the fish to feed crops which in turn clean the water for the fish, so it's a closed recirculating system that doesn't put waste into the environment (apart from what's generated to build the equipment and facility of course).

Sounds like this was just a regular fish farm using a spring, with the overflow carrying waste out into the local watershed.