Common name: Thompson's butterflyfish

General information

Thompson's Surgeonfish, also known as the Pyramid Butterflyfish, is a striking marine fish that is highly sought after in the reefkeeping hobby. Its scientific name is Hemitaurichthys thompsoni. This species is known for its unique pyramid-like patterns on the sides, which are composed of white to yellowish scales with a black base color. The contrast of these colors makes it a visually appealing addition to any saltwater aquarium.

Care

Caring for Thompson's Surgeonfish requires a well-established aquarium with plenty of swimming space, as they are active swimmers. They thrive in a stable environment with high water quality, so regular water changes and efficient filtration are essential. This species is herbivorous, feeding primarily on algae, so a diet rich in marine algae and vegetable matter is recommended to maintain their health and coloration.

Reproduction

In the wild, Thompson's Surgeonfish are known to form large spawning aggregations, which is a spectacular sight. However, breeding them in captivity is quite challenging and not commonly achieved by hobbyists. They exhibit broadcast spawning, where eggs and sperm are released into the water column.

Habitat

Thompson's Surgeonfish is found in the Indo-Pacific region, particularly around coral reefs. They prefer clear waters and are often observed in outer reef slopes and drop-offs. This species can be found at depths ranging from 3 to 30 meters, where they form schools and feed on plankton.