I decided to let the toad go. Would a Squirrel Tree Frog be a small enough companion for my salamander? He's just a tiny salamander.They salamander shouldn’t eat it. You do risk a chance if the toad is as big as or smaller than the sals mouth. If the toad is big enough and the tank gives each their own hiding space and the ability to separate, you should be good. Keep in mind American Toads tend to prefer slightly dryer soil than most terrestrial salamanders.