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Helmet Cowfish EXPERT ONLY (Tetrasomus gibbosus)

Find Helmet Cowfish EXPERT ONLY across reef-livestock retailers on ReefDock. Compare sources, check known pricing where available, and review care information before you buy.

Helmet Cowfish EXPERT ONLY
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Where to buy Helmet Cowfish EXPERT ONLY

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Helmet Cowfish EXPERT ONLY

Tetrasomus gibbosus has a distinctive boxy, compressed body with a pronounced hump on the dorsal surface, giving it a helmet-like appearance. Coloration ranges from yellow to olive-brown with darker reticulated markings and a pale belly.

Key facts

Diet
omnivore
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding Schedule
2-3 times daily
Max Size
10
Care Requirements
• Minimum 75-gallon aquarium; prefers 100+ gallons for long-term success • Stable water conditions: 72-78°F, pH 8.1-8.3, sg 1.020-1.024 • Requires meaty foods (mysis, krill, small fish) and frequent feeding • Produces copious amounts of waste; excellent filtration and water changes essential • Aggressive toward small fish and crustaceans; best kept singly
Temperament
Peaceful
Origin
Indo-Pacific from the Red Sea and East Africa to Hawaii and the Great Barrier Reef.
Reef safety
Not Reef Safe
Diet Details
Feed small portions 2–3 times daily with a mix of quality marine flakes, frozen mysis shrimp, small crustaceans, and occasional vegetable matter. Offer varied foods to support health and coloration.
Appearance
Tetrasomus gibbosus has a distinctive boxy, compressed body with a pronounced hump on the dorsal surface, giving it a helmet-like appearance. Coloration ranges from yellow to olive-brown with darker reticulated markings and a pale belly.
Family
Ostraciidae
Care Level
Expert

Research before you buy

ReefDock is the sister app to Reef Trak. Use Reef Trak to research and log fish, keep tank parameters organized, and maintain a complete livestock history. Log this fish on Reef Trak.

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