27-01-2021, 22:32
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Ctenochaetus Strigosus

The yellow-eyed surgeonfish, yellow-eyed surgeon fish, strigosus, strigosus Ctenochaetus is a popular marine fish among aquarists. In nature, these surgeonfish inhabit Hawaiian reefs and lagoons. This fish is relatively easy to care for and can be recommended for experienced aquarists.

Ctenochaetus strigosus is attractively coloured. The fish has an oval body with a sharp spike at the base of the tail fin. This spike is a kind of weapon the fish uses in self-defence against other fish. The body is brownish-purple in colour with yellow or blue horizontal stripes. The eyes are large, with a pale yellowish edging, which gave the fish another name - Yellow Eye Kole Tang. The head is decorated with small blue spots. The maximum size of the fish is 17 cm.

Ctenochaetus strigosus

Strigosus are classified as "bristle-tailed" due to their small, sharp and flexible scalloped teeth, which help them move various detritus materials around and cut algae from rock and sand surfaces.

An aquarium with a capacity of at least 250 l is suitable for keeping fish. The aquarium should provide plenty of space for the fish to swim freely. Large rocks and rocks in the corners of the tank should be placed in order to allow the fish to rest or hide in case of fright. Use coarse sand as substrate. Live rock and sand are small nooks and crannies that will accumulate detritus, which in turn will promote the development of diatoms. All this will create a comfortable environment for the Yellow Eye Kole Tang and help maintain their natural, healthy diet.

The Yellow Eye Kole Tang has a moderately aggressive character. We recommend keeping a maximum of one fish in an aquarium of up to 250 liters. If several fish are kept together, the fish should be introduced at the same time in a new aquarium. This ensures each fish can occupy its own territory, and not wrestle it away from the other fish that have been living in the aquarium for a long time.

It is possible to keep yelloweye surgeons in a common aquarium with other ray-feeding fish if there is enough free space. These fish do not harm corals, shrimps and crabs.

Ctenochaetus strigosus

Water parameters: temperature 22-26° C, pH 8.1-8.4. Water circulation in the aquarium should be poor.

The main diet of the Yellow-eye Surgeon is vegetable food, although the fish do not refuse almost all aquarium foods. These fish are excellent algae eaters. In fact, they spend most of their time eating diatom algae detritus off rocks. You can feed these fish dried or fresh seaweeds, flake food containing spirulina, cyclops, artemia, frozen shrimp mises in a domestic tank.


Among the Yellow-eyed Surgeons, it is very difficult to distinguish between male and female. During the courtship period, the male shows some colour changes. In nature, spawning is tied to the lunar cycle. We have no information on successful breeding of captive fish.

Life expectancy of the Yellow-eyed Surgeon in aquarium conditions is about 6-10 years.

Ctenochaetus strigosus

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