I would encourage everyone to learn about Aquaponics. Simple definition/explanation: Fish waste/water is used to water/feed plants similarly to hydroponics, but it is much simpler and extremely cheap; the plants effectively filter and add soluble oxygen to the water for the fish.
New rule: no elephants at the chess tournament. Tiny ads are still okay.
Homesteading and Permaculture Bundle - More than 35 Things
