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Article Archive

    Groupers

    Groupers
    • Diet
    • Temperment
    • Tank Environment
    • Tank Mates
    • Common Species
    • Origin: Indo-Pacific
    • Average Size: Varies by species
    • Lifespan: Up to 10 years


    Diet
    Groupers are fairly aggressive predators that will eat just about anything that will fit into their mouth. Feed a meaty diet of larger pellets, scallops, shrimp, and various other fish flesh.

    Temperament:
    Many groupers can be territorial and will grow very large, so keep this in mind with tankmates and tank size. They are also quite aggressive feeders; if it fits in their mouth, chances are that's where it will end up. Avoid placing with anything that may be a potential lunch.

    Tank Environment
    For Groupers, provide numerous hiding places and caves. These fish will spend time hiding under overhangs or in darkened caves. Groupers will do well with any lighting. Groupers are considered “reef safe,” although they grow very large and may damage corals by perching on surfaces. These fish also tend to be “jumpers” so a covered tank is safest.

    Tank Mates
    House with fish large enough to avoid being eaten (about the same size, if not slightly larger than the grouper). More aggressive fish like triggers or wrasses usually make good tankmates but avoid small fish like damsels or basslets.

    Common Species
    Panther GrouperCromileptes altivelis
    Max Size: 28”
    Origin:: Western Pacific
    Temperament:: This is a more unusual fish with a large appetite. They often sold very small but be prepared for the very large adult.

    Clown GrouperPogonoperca punctata
    Max Size: 14”
    Origin:: Indo-Pacific
    Temperament:: This fish needs plenty of shelter and places to hide. They have also been known to secrete a toxic slime when stressed.

    Spotted GrouperEpinephelus maculatus
    Max Size: 28”
    Origin:: Indo-Pacific
    Temperament:: This grouper is often sold as a small juvenile but will get much larger and more aggressive as it grows – provide ample room for the adult.