FinnyBird's suggestions are good. Two are fine in a 10 gallon tank. I have 6 in a 20 gallon, but I'm thinking of moving them up to a 40 gallon. I have a 60/40 split of land/water. They love to soak, I find them in the pools of my waterfall. I use plants and terracotta pots laid on their sides for hides and lots of moss. They are great entertainment at feeding time, watching them chase after the crickets and worms. Post pictures when you get your toads.