I have some aquarium gravel in the bottom of the aquariums - mostly to hold the bubblers down. I'm using the smallest punps and bubblers I have. I think one is more properly called a stone. No filters. I've been feeding them a little flake fish food and FA. They are eating a surprising amount of FA. I realized this evening that the gammarus scuds in the 10 gal tank had eaten all the FA. So I raked a little more out of the pond and added some to the 3 aquariums and the 2 bowls the Daphnia are in. I also put some in the aquarium with the FHM. I crumbled up a dead leaf off a dead lemon tree and put that in one of the scud tanks. They seemed to like that. A few days ago I poured a little water I had boiled potatoes in into one of the tanks. They didn't like that. They dove to the bottom and curled up. I thought I'd killed them, but I guess it was a defensive strategy, and after a bit they were moving around again. So far, they've survived poisoning and starvation.
