Yellow Eye Kole Tang
Yellow Eye Kole Tang
Species: Ctenochaetus strigosus
Growth Form: Active swimmer, constant grazer
Coloration: Dark brown to olive body with fine horizontal striping; bright yellow ring around eyes
Temperament: Semi-peaceful; may be territorial toward other tangs
Tank Size: 75+ gallons
Placement: Open swimming areas with ample live rock
Lighting: Moderate to high
Flow: Moderate to strong
Diet: Herbivore
Feeding: Nori, spirulina flakes/pellets, frozen herbivore blends; occasional meaty foods
Reef Safe: Yes
Care Level: Easy to Moderate
Yellow Eye Kole Tang
Scientific Name: Ctenochaetus strigosus
Common Names: Yellow Eye Kole Tang, Goldring Bristletooth Tang, Kole Tang
Overview
The Yellow Eye Kole Tang is one of the most popular bristletooth tangs in the marine aquarium hobby—and for good reason. Known for its striking yellow-ringed eyes and subtle horizontal striping, this tang combines beauty with utility. It is an exceptional algae grazer that helps keep live rock and glass clean while remaining relatively peaceful compared to many other tang species.
Appearance
Kole Tangs display a deep brown to dark olive body covered with fine horizontal lines that give them a textured, almost brushed appearance. Their standout feature is the bright yellow ring around each eye, which contrasts beautifully against the darker body. The fins often show hints of blue or lighter edging under proper lighting, adding to their understated elegance.
Size & Growth
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Adult Size: Up to 7 inches
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Growth Rate: Moderate
This species stays smaller than many other tangs, making it a great choice for hobbyists who want a tang without needing an extremely large aquarium.
Temperament
Yellow Eye Kole Tangs are generally peaceful and community-friendly. They can be slightly territorial toward other tangs—especially other bristletooth species—but are usually well-behaved when given adequate space and hiding spots. Best kept singly unless housed in a very large system.
Tank Requirements
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Minimum Tank Size: 75 gallons
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Aquascape: Plenty of live rock for grazing and swimming space
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Reef Compatibility: Reef safe
They thrive in mature reef systems with established algae growth and stable water parameters.
Diet & Feeding
Kole Tangs are primarily herbivores and constant grazers. Their specialized bristle-like teeth are designed to scrape algae and detritus from rock surfaces.
Recommended Diet:
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Marine algae (nori sheets)
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Spirulina-based flakes or pellets
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Frozen herbivore blends
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Occasional meaty foods (mysis, brine) as supplements
Regular feeding helps maintain coloration and reduces aggression.
Care Level
Care Level: Easy to Moderate
This tang is hardy once acclimated and adapts well to captive life. Stable water quality, proper diet, and sufficient swimming space are key to long-term success.
Ideal For
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Reef tanks
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Community marine aquariums
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Hobbyists looking for an effective algae control fish
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Beginner to intermediate saltwater keepers
Fun Fact
Unlike most tangs that rely on brute grazing, bristletooth tangs like the Kole use tiny comb-like teeth to “brush” algae and detritus off rocks—making them nature’s cleanup crew with finesse

