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Description
Barnacle Blenny Acanthemblemaria MacrospilusOverview The Barnacle Blenny is a charismatic and quirky marine fish known for its comical expressions, darting movements, and fascinating behavior. These small, tube dwelling blennies are often seen poking their heads out of barnacles, rock crevices, or coral holes, making them highly entertaining to observe. Despite their small size, they exhibit big personalities, often showing curiosity and territorial displays toward nearby fish or even their
OverviewThe Barnacle Blenny is a charismatic and quirky marine fish known for its comical expressions, darting movements, and fascinating behavior. These small, tube-dwelling blennies are often seen poking their heads out of barnacles, rock crevices, or coral holes, making them highly entertaining to observe. Despite their small size, they exhibit big personalities, often showing curiosity and territorial displays toward nearby fish or even their keepers.
Origin
Native to the Eastern Pacific Ocean, Barnacle Blennies are most commonly found along the coastlines of Mexico, particularly in the Gulf of California. They inhabit shallow reef environments and rocky intertidal zones, often sheltering in empty barnacle shells or other small crevices in coral rubble and rocky substrates.
Feeding
In the wild, Barnacle Blennies feed primarily on zooplankton and other tiny organisms drifting in the water column. In captivity, they accept a range of finely sized meaty foods:
Live or frozen mysis shrimp
Baby brine shrimp
Copepods
High-quality marine micro pellets
Finely chopped seafood or enriched frozen blends
Feed small amounts 1–2 times daily, making sure food drifts near their hiding spots for easy capture.
Tank Mates
Barnacle Blennies do best in peaceful, reef-safe community tanks with other non-aggressive species. Ideal tank mates include:
Gobies
Clownfish
Cardinalfish
Dwarf wrasses (peaceful species)
Small reef-safe invertebrates (such as cleaner shrimp)
Avoid housing them with large or highly territorial species, especially those that may compete for similar shelter or harass the blenny in its burrow.
Aggression
While generally peaceful, Barnacle Blennies can be territorial—particularly toward other blennies or fish that invade their space. They may display fin-flaring or quick lunges from their burrow to intimidate rivals. It's best to keep only one Barnacle Blenny per tank unless housed in a very large system with ample hiding spots.
Experience Level
Beginner to intermediate. Barnacle Blennies are hardy and relatively undemanding as long as they have appropriate hiding spots and stable, clean water. Their unique behavior makes them a favorite for nano reef tank enthusiasts and seasoned aquarists alike.
Water Parameters
Temperature: 22–27°C (72–80°F)
pH: 8.1–8.4
Salinity: 1.023–1.025
dKH: 8–12
Tank Size: Minimum 10 gallons (nano reef suitable, with strong emphasis on available hiding spots)
Special Notes
Provide multiple small crevices, shells, or barnacle clusters as shelter.
They spend most of their time in their burrow, darting out to feed or chase away intruders.
They are reef-safe and won’t harm corals or invertebrates.
Their expressive faces and peeking behavior make them highly entertaining additions to a reef aquarium.
Shipping Notes
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★★★★★ 2
Not a chew toy.
Color: Black & Lake Blue
The inside it a hard plastic, my dog can’t chew it. Plastic on the outside is very durable, my dog likes the noise it makes and will chase it but loses interest fast. I will not buy again.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Durable
Color: Black & Yellow
The ball is durable and makes a sound that keeps my puppy interested in playing with it.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
The best moisturizing cream ever!!
Size: 13.5 Ounce (Pack of 1), Size: 13.5 Ounce (Pack of 1)
The best cream moisturizer ever!! You literally feel the hydration penetrating deep down and u feel the buttery softness without a greasy feel. I refuse to not have any on hand at all times!!! The smell is also refreshing it just cocoons ur skin!!
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Intense healing in a convenient jar!
Size: 13.5 Ounce (Pack of 1)
A great healing lotion for all over body application. I like the product being in a jar so there is no problem getting the lotion out of a bottle making this a very wise economical choice. A 72 hour intense healing lotion providing a long lasting healing experience. Highly recommended.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
The texture is rich but still absorbs nicely into the skin, and a little goes a long way. I NIVEAs
Size: 13.5 Ounce (Pack of 1)
deep hydration and works especially well for very dry skin.
The formula feels rich and nourishing but still absorbs nicely without feeling greasy. After applying it, my skin feels soft, smooth, and comfortable for hours. I also love that it contains ingredients like glycerin, Pro-vitamin B5, and niacinamide to help repair and protect dry skin.
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Reviewed in the United States on March 4, 2026
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