Check out this Sunset Honey Gourami. These are a type of dwarf fish and will grow to be around 2 inches. It is okay to keep this particular species of Gouramis together as a group. However, it is always possible there will be aggression with lots of males in the tank. They will not get lonely being the only one of their species in an aquarium either. Gouramis are hardy fish and make a great addition to any small fish community tank.