Ctenochaetus striatus 7-9 cm

Ctenochaetus striatus: the Striped Surgeonfish, a Robust and Dynamic Grazer

The Ctenochaetus striatus, also known as the striped surgeonfish, is an active and discreet fish highly valued in marine aquariums for its beneficial behavior and changing appearance. Its ovaloid body can display different hues depending on the region of origin and the season, ranging from white to olive-brown, with fine horizontal blue or yellow stripes covering its sides.

This grazing fish naturally lives near reefs and rocky areas, where it moves alone or in small groups, in search of microalgae, detritus, and plant matter. It is a very effective cleaner of the substrate and live rocks, making it a valuable ally in well-established reef tanks.

Stable and Non-aggressive Behavior

The ctenochaetus striatus is a non-aggressive and rather independent fish, but it does not tolerate the presence of individuals of its species in confined spaces. Intraspecific cohabitation should be avoided, except in very large aquariums. However, it coexists easily with other peaceful marine species.

This surgeonfish is active and constantly visible. It usually moves with its mouth slightly open, browsing the rocks for food without disturbing other tank inhabitants. It is also compatible with the presence of invertebrates, which it does not consume directly, but whose presence supports a rich and stable ecosystem.

Aquarium Maintenance Conditions

A volume greater than 200 liters is recommended to accommodate a Ctenochaetus striatus. This volume ensures ample swimming space, appropriate water flow, and sufficient substrate surface for its dietary needs. It will appreciate a natural decor with fine sand, live rocks, and well-lit areas that promote algae growth.

Good oxygenation, gentle to moderate water flow, and stable water quality are necessary to ensure its long-term health.

An Herbivorous Diet with Some Supplements

The striped surgeonfish is primarily herbivorous but may occasionally consume small invertebrates or microfauna while grazing surfaces. In an aquarium, it should receive regular feeding that includes:

• Nori algae and vegetable flakes enriched with spirulina.
• Pellets for herbivorous fish rich in fiber.
• Occasional supplementary feeds such as mysis or artemia, in small quantities.

This diet contributes to its robustness, supports its cleaning activity, and maintains the natural brilliance of its colorful stripes.

A Discreet, Useful, and Easy-to-Maintain Fish

The Ctenochaetus striatus is an excellent choice for any aquarist seeking a functional, discreet, and low-maintenance fish. Thanks to its constant grazing activity, it actively helps reduce algae and detritus in the reef aquarium.

For well-supported beginner aquarists or experienced ones, the striped surgeonfish is a robust and very useful companion in tanks of 200 liters and more, with harmonious interspecific cohabitation.