2. Dwarf Gouramis
Another relatively small fish, only growing to about 1.5 - 2 inches, dwarf gouramis are compatible with most other kinds of tropical fish and are quite peaceful. Dwarf gouramis are very pretty and love lots of plants, so make sure you stock up on foliage for your tank. Just ensure that your dwarf gouramis are kept with other peaceful fish, because they can get aggressive if they feel their territory is threatened.