i thought you were talking about a small betta hex at first, i tihnk we need size, but hexs arent for bottom dewllers, hexs are like tall and thin, not much room for bottom dwellers, but mid-water-and-top water do good, neons, guppies,betta,paradise-gourami(yes thats what i call them )mabey angels, but ive never kept angels, too agressive for me.