I was also going to mention a butterfly fish! They don't do much though, much of the time they stay in one spot except when getting ready to "stalk" some food. They also prefer live food. Also, they can jump amazing distances, so you would have to have a tight fitting lid. The bushynose plecos are neat, but I gave mine to a fish store because they poop a TREMENDOUS amount in just a few days, and my filter was a mess in less than 5 days. I couldn't handle it. I like the leaf fish too, but hear they are hard to maintain, and keep alive. They also prefer live food, and are sometimes difficult to persuade to eat. They can be intimidated away from food by other fish as well.