I'm looking for a new pet to occupy my 29 gallon tank, I don't like empty cages for some reason. I originally used it as a fish tank (so it's heavy thick glass) and then I kept my first BP in there for a while, so it has a UTH and a screen top already. I'm looking for something that can happily live there all its life. I'm just looking for ideas at this point, but it has to be a reptile, I don't want any more fish and don't like rodents.

Thanks!