Fish flakes are good too-my bullfrog tadpole absolutely loved them when she was a tad. Usually the bacl legs will pop first; it could take several weeks or months for the front legs to show up. You will be able to tell by seeing movement of the limbs under the skin. It's creepy and fascinating at the same time!! Just an FYI: when all the legs are out, they won't eat again until the tail is absorbed. You will want to lower the water level to just barely covering it and give it a place to climb out when it is ready (I used a turtle dock-worked like a charm!). Keep us posted on its development-it truly is fascinating to watch!!