See...four in a 130 gallons they're gonna love it. The Auratus will be fine in the medium Exo Terra. Plus it makes more sense converting the wood tank for tree frogs. Also, just a side note. Don't use plexi on the lid because it will warp from the humidity and heat from the lights. Maybe get some screens made to size. You could use tabs around the edges to secure it. Since the tank is so long you could have two made instead of one big long one. Just some thoughts.