Groupers

6 available — powerful groupers requiring room for adult growth, robust filtration, substantial feeding, and suitable tankmates.
Shop grouper fish for sale for large fish-only aquariums, including the Miniatus Grouper, Panther Grouper, Polleni Grouper, and Blue Dot Grouper. Groupers are hardy, personable predators that quickly learn to recognize their owner at feeding time.Most speci... Read more Show less

Shop grouper fish for sale for large fish-only aquariums, including the Miniatus Grouper, Panther Grouper, Polleni Grouper, and Blue Dot Grouper. Groupers are hardy, personable predators that quickly learn to recognize their owner at feeding time.

Most species outgrow small tanks: many reach 12 to 20 inches, and the Panther Grouper can exceed two feet. Plan for a large aquarium, heavy filtration, and tankmates too big to swallow. Groupers do best with other robust FOWLR fish such as triggerfish, puffers, and lionfish.

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  • Panther Grouper
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    Panther Grouper

    Panther Grouper
    Starting at$39.59

    Cromileptes altivelis

    Care Level Moderate
    Temper­ament Semi-Aggressive
    Reef Safe With Caution
    Diet Carnivore
    Tank Size 180 gallons
    Max Size 16 inches
  • Spotted Coral Grouper
    ON SALE

    Spotted Coral Grouper

    Spotted Coral Grouper
    Starting at$53.99

    Plectropomus maculatus

    Care Level Expert Only
    Temper­ament Aggressive
    Reef Safe No
    Diet Carnivore
    Tank Size 600
    Max Size 49 inches
  • Boenacki (Blueline) Grouper
    ON SALE

    Boenacki (Blueline) Grouper

    Boenacki (Blueline) Grouper
    Starting at$80.99

    Cephalopholis boenak

    Care Level Moderate
    Temper­ament Aggressive
    Reef Safe No
    Diet Carnivore
    Tank Size 180 gallons
    Max Size 16 inches
  • Polleni Grouper
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    Polleni Grouper

    Polleni Grouper
    Starting at$256.49

    Cephalopholis polleni

    Care Level Moderate
    Temper­ament Aggressive
    Reef Safe With Caution
    Diet Carnivore
    Tank Size 180 gallons
    Max Size 17 inches
  • Miniatus Grouper
    ON SALE

    Miniatus Grouper

    Miniatus Grouper
    Starting at$129.59

    Cephalopholis miniata

    Care Level Moderate
    Temper­ament Aggressive
    Reef Safe With Caution
    Diet Carnivore
    Tank Size 180 gallons
    Max Size 18 inches
  • Blue & Yellow Cod Grouper
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    Blue & Yellow Cod Grouper

    Blue & Yellow Cod Grouper
    Starting at$129.59

    Epinephelus flavocaeruleus

    Care Level Difficult
    Temper­ament Aggressive
    Reef Safe With Caution
    Diet Carnivore
    Tank Size 500 gallons
    Max Size 35 inches

Answers

How large do aquarium groupers become?
Adult size varies by species, but many become much larger and heavier than their juvenile appearance suggests, requiring substantial space.
What do grouper fish eat?
Most groupers are carnivorous and can accept appropriately sized marine meats or quality prepared foods offered in controlled portions.
Can groupers live with smaller fish?
Smaller fish and crustaceans may be treated as prey, particularly if they can fit into the grouper's surprisingly large mouth.
Do groupers need strong filtration?
Their meaty diet and substantial waste production commonly call for robust biological filtration, efficient export, and regular maintenance.
How should a grouper be acclimated?
Use gradual acclimation, subdued lighting, ample shelter, and careful observation of respiration, feeding, and aggression after introduction.

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More info and buying tips

Groupers

Selecting a Grouper

Research the exact species, verified adult length, body mass, and typical behavior. Juveniles can be deceptively small, so choose according to mature needs rather than the sale size. Look for clear eyes, steady breathing, intact fins, and a responsive feeding posture. Compare potential livestock in saltwater fish.

Habitat and Filtration

Provide broad swimming lanes, large caves, stable rockwork, and enough volume for the adult fish to turn comfortably. Groupers produce considerable waste from protein-rich diets, making strong biological filtration and nutrient export important. Use dependable testing and maintenance equipment from aquarium supplies.

Feeding and Predation

Feed varied, appropriately sized marine carnivore fare without routinely overfeeding. Quality selections from fish food can support a balanced menu. Avoid feeder fish that may introduce disease or poor nutrition. Any fish or crustacean that fits in the grouper's mouth can become prey, and established tankmates are not automatically protected.

Compatibility and Acclimation

Choose robust tankmates that are too large to swallow and that tolerate the grouper's presence. Territorial conflict remains possible among predators. Acclimate gradually, dim the lights, and provide an open cave immediately. Monitor breathing, feeding, waste levels, and aggression closely, then adjust husbandry as the fish grows and its bioload increases.