OK - I put additives into the water to help the plants grow. And, I take the water out as a regular water change to help the inhabitants grow.
Has anyone used the "old" water as houseplant fertilizer? It seems like it might be a good recycling technique.
(I went to the store and bought a wastebasket. The clerk put it in a bag. When I got home, I put the bag in the wastebasket.)