Groupers Species


Groupers are members of the large subfamily Epinephelinae which contains over 16. Groupers are a commonly kept group of marine fishes due to their large size and personalities. The size of these fish, coupled with the patterns and colors of some grouper species make then wonderful show specimens for a large marine tank.

The Polleni Grouper (Cephalopholis polleni) is one of the most commonly sold grouper species, and its purple and yellow patterning are very distinctive.  Other grouper species frequently seen for sale in the aquarium trade include the Miniatus Grouper (Cephalopholis miniatus), as well as the Blueline Grouper (Cephalopholis formosa).


Groupers have a broad distribution and can be found in all the worlds oceans, as well as in some brackish environments.  Groupers exhibit an extreme range of sizes, from mere inches to many feet long and weighing hundreds of founds.

Groupers display multiple reproductive strategies. In many species, individuals all mature as females, and only the most dominant fish in a group will become a reproductive male. Other grouper species are gonochoristic, meaning they are born with predetermined gender. Groupers also display a wide range of habitat preferences, with some species living solitary lives hidden in caves, and others forming large open water aggregations.

Captive Care

Groupers can make great aquarium inhabitants, provided their husbandry needs such as diet, water quality and tank space are met. One of the most important aspects of grouper care is tank size, being large fish, groupers require very large tanks to thrive.

Most tropical groupers prefer a temperature range of 72F (22C) to 80F (26C). Groupers are not generally considered a reef safe fish as they will readily consume any fish or invertebrates small enough to be consumed. However, groupers do not pose a direct threat to corals, so they may be kept in a reef tank with only large fish as companions.

It is important to consider carefully what species of grouper may be best for your aquarium. While smaller species such as the Polleni Grouper (Cephalopholis polleni) are suited to tanks as small as BLANK GALLONS, larger species such as the Panther Grouper (Chromileptis altivelis) may be better suited to a larger tank.

Suggested Piscine Energetics Products

We suggest a diet based on Piscine Energetics Frozen Mysis, Piscine Energetics Frozen Calanus, Piscine Energetics Pellets (2mm and 2mm) and Piscine Energetics Saltwater Flakes.

Recommended Products

What people are saying about PE:

After feeding my seahorses your mysis for about 3 months; they are fat and happy!!! they give me baby seahorses (at least 300 ) each 14 days... So I'm very satisfied of your mysis.The frozen mysis is about 70 per cent of their diet.

Yvan Charbonneau Quebec

I am keeping these Indian mudskippers -- very cute -- about 3-4 inches long. I've been feeding them frozen bloodworm, and decided to try them on mysis. I feed them in a "shallows" in the 150 I have set up for them. The minute the mysis hit the water they were on it, frozen and all. They gorged until their little bellies were almost bursting. I have yet to see an aquatic creature that does not go absolutely nuts over PE Mysis.

David Lass Massachusetts

I picked up my Mysis today and they arrived wonderfully. All the fish I fed them to, absolutely devoured them. They are my Frontosas new favorite food. All my Discus ate them up eagerly...heads and all!! I want to thank you again for your excellent service and product.

Pierre Brenton Nova Scotia

I have a large saltwater aquarium (220 gallons) with very expensive fishes and invertebrates. I tried to feed them with your PE Mysis and they really went crazy about it. Since that time, some of my fishes refuse any other product I offer them!

Robert Boily Montreal, Quebec