Blue Dot Grouper

Greek Name: (Cephalopholis argus)



Blue Dot Grouper, also called Bluespotted Grouper, Argus Grouper, or Peacock Hind, is primarily colored brown with flecks of mottling. Its fins appear dark and small blue dots cover all of the body. The posterior part of the body features six white vertical bands.

A 250-gallon or bigger aquarium is needed in order to accommodate the dimensions and the feeding habits of the fish. It’s very violent and could consume its tank mates and crustaceans.

The Blue Dot grouper favors eating a diet rich in meat, like shrimp, krill, and other small fish.

Approximate Size of Purchase: Small: 2″ to 3″; Medium: 3″ to 5″; Large: 5″ to 7″; X Large: 7″ to 9″



Care Level




Color Form

Blue, Tan



Reef Compatible

With Caution

Water Conditions

sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4

Max Size

1' 4"


Indonesia, Sri Lanka, Sumatra



Minimum Tank

250 gallons


Blue Dot Grouper Info

The Blue Spot Grouper Cephalopholis argus, also called the peacock hind, argus hind, and bluespottted grouper is beautiful and tough. This aggressive fish is found in the Indo-Pacific and Hawaii. A sea bass that is properly a part of the family of Serranidae Blue dot grouper is primarily fed by other species of fish in the wild, but it also eats crustaceans. Expect similar behavior for your tank. If you have a large fish-only aquarium with similarly large fish the blue dot is one of the most beautiful members of the genus and must be considered with care. The blue dot grouper is a fan of low-light areas with a couple of strong caves (these fish are known to dig). A single blue dot grouper can be kept in an aquarium. A diet that is rich in chunks from marine meat (such as table shrimp in raw form) or a frozen meal designed for marine carnivores must be served. Although this blue spot grouper might seem shy upon introduction in a short time it will be an amiable, disease-resistant beautiful fish for a large fish-only aquarium.

Additional information


Large, Medium, Small

Subscribe To Our Newsletter

Signup today to receive a coupon code for a one-time use of 10% off all Aquarium Supplies.