with Carolyn's suggestion! A bog doesn't have to be deep water. Well... actually neither does a water lily container, but you will have to add water to it every day in this heat. I have to add water at the end of every day to keep enough water in the containers for the water lilies. And I agree, the water might be too warm for fish. Just throw a mosquito dunk piece in there. I break the dunks in quarters and add a piece to the smaller containers.