Lyndsay Hausken

My son has an a leopard frog who just changed from a tadpole finally, a tree frog who is fat and thriving and an unidentified breed tadpole that has rear legs and shows no signs of changing anytime soon. I now have two frogs and am trying to figure out a habitat plan for them, i have a 20 gallon tank but have been warned that the leopard and the tree frog cant be housed together... this was unknown to me until recently. I am very new to the whole frogs as pets thing and my son loves them. so any knowledge would help greatly. Thanks