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Blennies



Choosing and Caring for the Marine Blenny for your Home Aquarium

With so many amazingly colored marine fish available for the home aquarium, it's easy to become very fond of their vibrant colors and lovely finnage. Even so, most aquarists favorite specimens are often those that possess the most "personality." But most of all in terms of personality, no other fish group compares to the blennies. Combined with a usually excellent temperament and constant alertness, their daring antics make them quite entertaining to watch.

Compared to many other marine aquarium fish groups, blennies make for extremely low-maintenance pets. Simple to feed and comfortable in just about any size tank, very simple to care for, this disease resistant hardy group of fish seldom pose any major problem for even the beginner aquarist. Most owners of blennies consider their appearance and behavior as cute, entertaining, even comical. With such a great personality, and their ease of care it is no wonder why they are one of the top recommended saltwater fish groups for the home aquarium. Aquarists can count on their Blenny being reliably reef safe, and their small adult size make them an excellent choice for any marine aquarist.

As a group, the blennies are enormously varied. The so-called "true blennies" are known as blennioids and form their own taxonomical group. Though some aquarium literature speaks as though these true blennies form a family, the blennioids actually make up an entire suborder, with six families comprising the suborder Blennioidei. This suborder claims around 833 separate blenny species in 130 genera. That's a whole lot of funny looking, comical blennies! With such a large genera, its amazing that certain traits are found throughout. The entire group are smallish in body size yet the eyes and mouth of a blenny are relatively large, and they often bear distinctive antenna or whisker like appendages on their heads.

Special Note:When you see "Aquarium Conditioned" on one of our featured saltwater fish, it means the fish have gone through our Aquarium Conditioning Process which is from 26 days to 60 days long, depending on species. During this time the arriving ocean fresh fish first go through Quarantine, then go into our aquarium life systems. In our aquarium life systems they will get used to aquarium life and we work on getting them to eat well through a special process we use to change ocean fresh saltwater fish over to our aquarium conditioned fish. The process includes enough time to let us have confidence sending marine fish to you knowing they will do well in proper aquarium conditions and they will also eat well, which are the two most important factors if you expect a long life saltwater aquarium fish.

15 Results

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Aquarium Conditioned Sailfin/Algae Blenny
Salarias fasciatus
Picture of a Sailfin / Algae Blenny, Salarias fasciatus
Description: The Lawnmower is aptly named for its ability to mow down hair algae. These fish have tons of personality. They make an excellent addition to any reef tank. They should be offered algae sheets on a regular basis if regular algae growth is not available.This is a great aquarium fish, Primarily utilized to help control filamentous algae, but an all around great aquarium fish to keep in your tank. Keep only one per tank, unless your aquarium is large enough to house a pair. Other names this algae junkie goes by is the Jewelled Rock skipper, Rock Blenny or Eyelash Blenny. Native to the reefs across the Indo-Pacific.

Recommended Tank size: 30 gallon

Feeding and Diet: Best in a well-established aquarium with large amounts of natural algae to feed on. Supplement the diet with vegetable matter, spirulina, and herbivore preparations.

Level of Care: Easy

Reef CompatibilityExcellent

Approximate Purchase Size:Small: 1" to 1-1/2"; Medium: 1-1/2" to 2-1/2"; Large: 2-1/2" to 3-1/2"

Small$20.99 Medium$21.99 Large $25.99


Aquarium Conditioned Tailspot Blenny
Ecsenius stigmatura
Picture of Tail Spot Blenny
YouTube Video of the Tailspot Blenny

Description: Tail Spot Blennies are a great fish for smaller tanks. They are extremely peaceful and easy to take care of demanding a tank size of around ten gallons to meet its needs. They grow up to approximately 2 inches. They like to hangout in crevices and rocks where they can perch or hide. To keep these fish it is a great idea to have a good amount of live rock so that they are able to graze on the algae and also be given plenty of places to hide. In smaller tanks they can help keep algae in check, but in larger systems since so small they would have a hard time keeping up.


Recommended Tank size: 10 gallon

Feeding and Diet: It will feed on the aquariums natural algae helping to keep it under control. Supplement with vegetable matter, frozen and dried foods containing marine and blue-green algae and herbivore preparations.

Level of Care: Easy

Reef CompatibilityExcellent

Approximate Purchase Size:1 inch to 1-1/2inch


$24.99

Aquarium Conditioned Starry Blenny
Salarias ramosus
Picture of Starry Blenny


Description: The Starry Blenny also called a Snowflake Blenny eats a wide variety of algae including troublesome hair and string algae. It needs to be in an aquarium with live rock to graze and perch on. Getting its name from the numerous white to light blue dots over their entire body. They also have bushy cirri (whisker-like appendages) protruding from between their eyes, and are equipped with combed teeth excellent for algae grazing. A hardy and intelligent species that will add both cleaning power and personality to any system. Gets along peacefully with every tank mate as long as they do not have a similar appearance, (other close resembling blenny's).

Feeding and Diet: It will feed on the aquariums natural algae helping to keep it under control. Supplement with vegetable matter, frozen and dried foods containing marine and blue-green algae and herbivore preparations.

Level of Care: Easy

Reef CompatibilityExcellent


Approximate Purchase Size:Small: 1-1/2" to 2"; Medium: 2" to 3" Large: 3" to 4-1/2"

Small$18.99 Medium$21.99 Large $29.99


Aquarium Conditioned Bicolor Blenny
Ecsenius bicolor
Picture of the Bicolor Blenny, Ecsenius bicolor
YouTube Video of the Bicolor Blenny

Description:   The Bicolor Blenny is also called the Two-colored Blenny. It is a species typically found perched on the rock work or hopping from rock to rock, intently rasping algae as it moves along. Therefore, it doesn't demand a great deal of open swimming space. This species will typically choose a hole in the rockwork as its regular refuge, so be sure to provide a good amount of porous, holey live rock. Also, note that it's best to introduce the bicolor to a mature aquarium at least 30 gallons in size with a decent crop of microalgae to graze on, rather than a "sterile," newly set up system.

Feeding and Diet: It will feed on the aquariums natural algae helping to keep it under control. Supplement with vegetable matter, frozen and dried foods containing marine and blue-green algae and herbivore preparations.

Level of Care: Easy

Reef CompatibilityExcellent

Approximate Purchase Size:Small 1-1/4" to 2"; Medium 2" to 3"

Small$18.99 Medium$21.99


Aquarium Conditioned Forktail Blenny
Meiacanthus atrodorsalis
Picture of Forktail Blenny, Meiacanthus atrodorsalis


Description: The Forktail Blenny is a colorful, active, reef safe aquarium fish. Also called the Lyretail Blenny or Yellowtail Blenny, it is aptly named from the shape of the caudel fin making the entire fish look like a fork. The body is a pale blue that turns into a yellow at the tail. This animated, hardy character grows to a maximum length of around 4 inches. The Forktail Blenny needs a minimum tank of 30 gallons with live rock for hunting and grazing. It is best to keep only one per tank unless a breeding pair is maintained. Note: Aquarists just need to be aware that the Forktail Blenny is considered venomous. Keep only with caution around children since it could give a painful bite.

Feeding and Diet: The Forktail Blenny is an omnivore requiring a proper diet of meaty and plant based foods. For a diet provide finely chopped meaty foods such as crab, shrimp, oyster, and clam along with mysis, vitamin-enriched brine shrimp,and a good frozen herbivore preparation.

Level of Care: Moderate

Reef CompatibilityExcellent

Approximate Purchase Size:1-1/2" to 3"


$14.99

Aquarium Conditioned Tribal Blenny
Ecsenius spp.
Picture of Tribal Blenny, Ecsenius spp.


Description: An interestingly marked algae blenny, the Tribal Blenny has Blue war-paint accents making this one an unusual worker Blenny. The Tribal Blenny eats a wide variety of algae including troublesome hair and string algae. It needs to be in a 30 gallon or larger aquarium with live rock to graze and perch on. Equipped with combed teeth excellent algae grazing, they are a hardy and intelligent species that will help keep algae under control. Perfect for a community or reef tank. Gets along peacefully with every tank mate as long as they do not have a similar appearance, (other close resembling blennie's).

Feeding and Diet: It will feed on the aquariums natural algae helping to keep it under control. Supplement with vegetable matter, frozen and dried foods containing marine and blue-green algae and herbivore preparations.

Level of Care: Easy

Reef CompatibilityExcellent

Approximate Purchase Size: 2 inches to 3 inches



$29.99


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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.