Channa Pulchra 3-4inch

Sometimes supposedly small details are decisive, for example when it comes to species differences. There are two species of snakehead (Channa) that occur geographically close to each other in Burma (Rakhine State): Channa pulchra and Channa ornatipinnis. Both look quite similar and grow to a similar size (20-25 cm), but they differ considerably in their aquarium biology: C. ornatipinnis is a cold-water fish and becomes very aggressive within the species at temperatures above 20°C, whereas C. pulchra develops such aggressiveness at temperatures below 25°C. If C. pulchra are kept at 25-28°C they are comparatively (!) peaceful snakeheads, which also reproduce very readily.