I have a 75 gallon up and cycled but empty and its just begging for fish to house. Its lightly planted with sand for a substrate and some driftwood and rocks. I want to go with an amazon theme for the stock and i know i want atleast one cool bottom dweller to go along with some free swimmers or maybe even one or two larger fish. I cant decide on what fish to choose. I prefferably want fish that can be housed for life in the 75 but i do have a 150 i could move a fish into if they would be a nice growout