Grunts & Sweetlips Species

Grunts & Sweetlips

Grunts and Sweetlips are member of the Haemulidae family, which encompasses 19 genera and 133 species.

The Oriental Sweetlips (Plectorhinchus orientalis) is one of the most commonly sold grunt species. Other popular species in the aquarium hobby include the Harlequin Sweetlips (Plectorhinchus chaetodonoides) and the French Grunt (Haemulon flavolineatum).


Grunts are found in freshwater, saltwater and brackish water throughout the tropics. They have a ventral oriented mouth with large sensitive lips, giving rise to the nickname “sweet lips”. They are predatory fishes that cruise the substrate hunting for prey. One of the unique characteristics of these fish is their ability to produce a large, audible grunt that can be hear from great distance. In addition to being found in aquariums, Grunts and Sweetlips are popular sport fish around the world, and in some instances are targeted for commercial food fisheries as well.

Captive Care

Grunts can make great aquarium inhabitants, provided their husbandry needs such as diet, water quality and tank space are met. Being such large fish, one of the most important aspects to their captive care is the aquarium size in which they are to be maintained. Even smaller species of grunts obtain a relatively large size. Moreover, being predatory fish it is important to only keep grunts with other similarly sized fish that cannot be easily consumed.

Grunts prefer a temperature range of 22C (72F) to 27C (82F).   Grunts are generally not considered reef safe due to their tendency to consume smaller fish and invertebrates. That being said, they do not harm corals so can be maintained in large living coral reef tanks provided their tank mates are selected with care.

It is important to consider carefully what species of grunt may be best for your aquarium. Wall member of the grunt family reach a fairly large size, requiring significant tank space for long term health.

Suggested Piscine Energetics Products

We suggest a diet based on Piscine Energetics Frozen Mysis, , Piscine Energetics Pellets (3mm) 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