Three spot gourami protects aggressively. The three spot gourami is a hardy fish. They can be housed with a variety of tank mates of similar size and temperament. While males can be territorial with each other, they become timid around other, more aggressive fish. Male gouramis are known to be very aggressive; they may also be fin nippers and generally may bother other fish in the tank. They often show aggression toward species with long, flowing fins such as male guppies, goldfish, and bettas, because they display long tails and bright colors, presenting competition for impressing a female gourami. Female gourami sometimes bother
Kissing gourami each other in length and frame the body. The posterior most soft rays of each of these fins are slightly elongated to create a trailing margin. The foremost rays of the jugular pelvic fins are also slightly elongated. The pectoral fins are large, rounded, and low-slung. The caudal fin is rounded to concave. The lateral line is divided in two, with the posterior portion starting below the end of the other; there are a total of 43–48 scales running the line's length. The most distinctive feature of the kissing gourami is its mouth. Other than being terminal (forward-facing) rather than