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Saltwater Aquarium Groupers

Groupers are large and aggressive saltwater fish that do well in very large aquariums. Most Groupers will grow well over 12 inches in captivity and need a large tank full of swimming room and hiding places to thrive. Groupers can be kept in reef tanks, but will eat smaller fish and shrimp given the chance. For this reason you must proceed with caution if adding a Grouper to your reef tank. Groupers can be aggressive to other similar species if the aquarium is not large enough for more than one.

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Aquarium Conditioned
Saddleback Grouper
Plectropomus laevis

Picture of Saddleback Grouper
You Tube Video of the Saddleback Grouper

Description: A very rare grouper that shows up once in a while in our warehouse. It is a fast growing fish that needs plenty of food. Although it can be shy when initially introduced to the aquarium, with time it will spend more time in the open, becoming quite bold. Only one Saddleback Grouper should be kept per aquarium. Like all groupers, it will eat any fish that they can swallow whole and behave aggressively towards tank mates that intrude into its preferred hiding place. It will also eat ornamental shrimps and crabs. Although it can be shy when initially introduced to the aquarium, with time it will spend more time in the open, becoming quite bold in time. It is compatible with other aquarium fish provided they are too large to be eaten.

Tank Recommendations: Can be maintained in ‘large’ reef or fish-only aquariums with several caves and ledges. May initially be somewhat shy, but will become more social in the coming weeks. Overall, somewhat peaceful, but will protect/chase away from what it considers its territory/areas in the aquarium. Will consume smaller tankmates.

Food and diet: As to diet, these are carnivores and require a diet high in protein and amino acids (lipids/fats). Products such as marine fish and crustacean flesh, clams, and other marine meaty foods should make up the majority of their diet. Therefore a meaty diet such as enriched chopped fresh fish or shrimp flesh, and/or frozen carnivore foods should be fed. And because these are not overly active fish, their metabolism is somewhat low, so feeding once every other day should suffice nicely. May be difficult to feed in the early days in the aquarium and if so, (if small live marine fish are not available) live glass/grass shrimp and/or small crabs, e.g., fiddler crabs may be needed to sustain the fish.

Level of Care: Moderate

Acclimaton Time: 2+ hours

Reef Compatibility : with caution

Approximate Purchase Size: Small 2" to 2-1/2 Medium 2-1/2" to 4" Large 4" to 6" XLarge 6" to 8"







Small $199.99 Medium $249.99
Large $349.99 XLarge $449.99






Aquarium Conditioned
Blue Spotted Grouper
Cephalopholis argus

Picture of Blue Spotted Grouper
You Tube Video of the Blue Spotted Grouper
Description: The Blue Spot Grouper is a common favorite among aquarists with FOWLR (Fish Only With Live Rock) aquariums. Often willing to accept not only a captive diet, but to learn to eat from the hand of the aquarist is endearing. Blue spotted Groupers are found living near coral reefs throughout the Indo-pacific where they hunt for small fish or invertebrates to consume. This species is often referred to by a number of names within the marine aquarium hobby, including: Blue Dot Grouper, Argus Grouper, Peacock Hind or Peacock Grouper. The Blue Spot Groupers body is a mottled brown and tan color with six verticle white bands running from just behind the pectoral fins to the tailfin. The white bands can appear anywhere from very prominent to almost completely faded depending on the aquarium environment and the fishes current disposition. The fins are a dark blue color, with a lighter blue outline and the entire body is covered by bright blue dots.

Tank Recommendations: While this fish is considered easy to keep, it does require excellent water conditions in addition to a large aquarium to be properly housed. Bluespotted Groupers appreciate a lot of live rock with plenty of large caves and rock crevices for them to rest on and swim about. Since Bluespotted Groupers eat large meaty items, they create a lot of waste products, therefore it is important to have a very strong biological filter setup to handled the load this and other large predator species put on a filter system. This species should only be kept with other large semi-aggressive to aggressive fish species, as they will eat any fish they can fit in their mouth.

Food and diet: As to diet, these are carnivores and require a diet high in protein and amino acids (lipids/fats). Products such as marine fish and crustacean flesh, clams, and other marine meaty foods should make up the majority of their diet. Therefore a meaty diet such as enriched chopped fresh fish or shrimp flesh, and/or frozen carnivore foods should be fed. And because these are not overly active fish, their metabolism is somewhat low, so feeding once every other day should suffice nicely. May be difficult to feed in the early days in the aquarium and if so, (if small live marine fish are not available) live glass/grass shrimp and/or small crabs, e.g., fiddler crabs may be needed to sustain the fish.

Level of Care: Moderate

Acclimaton Time: 2+ hours

Reef Compatibility : with caution

Approximate Purchase Size: Small 2" to 2-1/2 Medium 2-1/2" to 4" Large 4" to 6" XLarge 6" to 8"



Small $49.99 Medium $79.99
Large $129.99 XLarge $169.99



Aquarium Conditioned
Blue line Grouper
Cephalopholis formosa

Picture of Blue line Grouper

Description: The Blue Line Grouper, also known as the Boenacki Grouper or Blue-lined Hind, is light red with multiple vertical blue lines. The fins are highlighted with dark blue. Blue Line Grouper or as they are also commnly known as the Boenacki Grouper, or Blue-lined Hind, or Blue Line Sea Bass are an Indo-Pacific grouper that dwells in and around coral reefs and rocky areas. This species is best suited for FO (fish only) or FOWLR (fish only with live rock) aquariums with other large aggressive or semi-aggressive fish species.

Tank Recommendations: Blue Line Groupers require large aquariums with excellent filtration to accomodate their size and feeding habits. As Blue Line Groupers eat large meals they end up producing a lot of waste products, which means they need excellent filtration (especially biological and mechanical) in order to keep the water quality high. While this species is not harmful to corals, it is best suited for fish-only aquariums as it will eat any fish that it can fit in its mouth and will eat most any type of crustacean. Blue Line Groupers live near the fringes of coral reefs in the wild, they should be provided an aquarium environment that contains both live rock formations and open swimming areas. They do best with other large predatory species (triggerfish, eels, sharks, etc.) or with adult semi-aggressive species (large angelfish, tangs, etc.).

Food and diet: As to diet, these are carnivores and require a diet high in protein and amino acids (lipids/fats). Products such as marine fish and crustacean flesh, clams, and other marine meaty foods should make up the majority of their diet. Therefore a meaty diet such as enriched chopped fresh fish or shrimp flesh, and/or frozen carnivore foods should be fed. And because these are not overly active fish, their metabolism is somewhat low, so feeding once every other day should suffice nicely. May be difficult to feed in the early days in the aquarium and if so, (if small live marine fish are not available) live glass/grass shrimp and/or small crabs, e.g., fiddler crabs may be needed to sustain the fish.

Level of Care: Easy

Acclimaton Time: 2+ hours

Reef Compatibility :With Caution

Approximate Purchase Size: Small 1-1/2" to 2-1/2" Medium 2-1/2" to 4" Large 4" to 6" XLarge 6" to 8"








Small $59.99 Medium $79.99
Large $129.99 XLarge $199.99



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Copyright 2018 Aquarium Creations Online
Photos are representative of each species. All marine life will be unique and variations should be expected, color and sizes may vary.
*Guarantee Restriction: All of our livestock are guaranteed. However for one or more of these species, they may be marked with a guarantee restriction. If it does, it means the specific animal may not handle stress from environmental conditions well. These stresses can include poor water quality, harassment from tank mates or confined aquarium conditions. When stressed, these species can lose the ability to ward off infection and disease. Other species may be listed as Restricted because they have such specialized feeding requirements that is difficult recreate in a aquarium and may succumb to malnutrition.