My Uncle took me to a place to snag some tadpoles, i got about 50, gave half to him. Three of the ones i kept had all four legs and a tail, now a few days later they barely have a tail and like to be out of the water. I have no idea what kind of frog they are. Is it normal for them to climb up the side of the tank? They have a greenish back and brownish legs. Thanks, this is the first time ive raised tadpoles.