We are growing tadpoles and will later return them to the pond where we got the frog spawn. At the moment, they have plant life from that pond and I'm giving them cooked lettuce and spinach. We also have some fish flake food which we will start to feed them soon. Does anyone know what else would be good to give them? We are changing water to keep oxygen in water and have some large stones for them to climb on if we are lucky to get them to frog stage!