Ok well I finally got rid of all the fish in my 29 gallon and I am considering something scaly or slimy. I want something that won't outgrow the tank and will be interesting to watch i.e not a pacman frog. I was looking at smaller frogs like firebellied toads and dart frogs. But I really don't know how interesting they are to watch. I do like darts but I am afraid they will be too hard and expensive to take care of. I already have a tegu so I don't need another animal that will continuously drain my funds. I am open to anything though.