This past summer I fed live mosquito larvae. Mosquitos are a real problem around where I live and I'm constantly on the lookout for anywhere that water accumulates because the little monsters will breed there. This past summer, instead of dumping the water, I strained out the larvae whenever I found them and fed them to my fish. They really seemed to enjoy them. Next summer, I think I'll leave a container of water out to collect them. I just have to make sure I check it often, before they reach adulthood.