Spiny eels would work, and while not rare, are interesting characters.
There are several exotic plecos that would stay small enough--but they tend to be shy, so it won't be a show piece fish.
I really like the african butterfly fish, but they will pose a threat (ie, they will eat them!) to any fry or very small fish. They lurk at the surface, so some floating plants are needed, as well as a tightly covered tank--these guys are tremendous jumpers.
Take a day to visit all the fish stores, and write down the fish that interest you. Then we can help you pick from the list. The shape and colors that I like might not be attractive to you.
There are several exotic plecos that would stay small enough--but they tend to be shy, so it won't be a show piece fish.
I really like the african butterfly fish, but they will pose a threat (ie, they will eat them!) to any fry or very small fish. They lurk at the surface, so some floating plants are needed, as well as a tightly covered tank--these guys are tremendous jumpers.
Take a day to visit all the fish stores, and write down the fish that interest you. Then we can help you pick from the list. The shape and colors that I like might not be attractive to you.