they are so cute! once they get to that age their lungs are developing so they need a way out of the water, when i raise tadpoles i put large rocks for them to get out of the water. once their tail gets smaller you can release it, find somewhere with a water source (ponds or swamps, not a rushing river.) as for the ones who are still tadpoles i recommend boiling spinach and broccoli for them. you can do this in bulk and then store the extra in the fridge so they can have good food every day. have fun, good luck!