Linear Blenny

Ecsenius lineatus

(0 Reviews)

Linear Blenny

Linear Blenny

Ecsenius lineatus

(0 Reviews)

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Linear Blenny Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Herbivore
Origin: South Asia
Acclimation Time: 2+ hours
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 4 inches

Ecsenius lineatus, also known as the Linear Blenny or Lined Blenny, is a small reef dwelling blenny that enjoys perching on and hiding among rocks. It has a primarily brownish black body, with a white underside and transparent fins. It will graze on algae throughout the day, and should not be kept with aggressive fish. Though labeled reef safe, they have been known to nip at SPS, such as Acropora and Montipora, so use caution when housing in an SPS dominant system. Though it will feed on algae throughout the day, it should be fed an herbivorous blend of frozen foods to ensure it is receiving enough nutrients. 


About the Linear Blenny (Ecsenius lineatus) and Care Guide


The Linear Blenny (Ecsenius lineatus) is a captivating addition to saltwater marine aquariums, offering aesthetic appeal and unique characteristics. This comprehensive product description will explore various aspects of keeping the Linear Blenny in your aquarium.


Linear Blenny Habitat


The Linear Blenny is commonly found in the Western Pacific Ocean, including the waters of Fiji and Indonesia. These areas are characterized by their vibrant coral reefs, which serve as the natural habitat of the Linear Blenny. It is essential to replicate this environment to ensure the species' well-being in your aquarium.


Linear Blenny Reef Compatibility


The Linear Blenny is considered reef-safe. It is not known to harm or consume corals, making it a suitable choice for reef enthusiasts. However, it is essential to monitor your individual fish's behavior as there can be occasional exceptions in temperament.


Linear Blenny Size and Lifespan


This species typically reaches 4 to 5 inches when fully grown. In captivity, the Linear Blenny has a lifespan of 5 to 7 years with proper care.


Linear Blenny Diet in Captivity


In captivity, the Linear Blenny primarily feeds on a diet of microalgae and small zooplankton. Providing a mix of high-quality marine flake or pellet food and occasional offerings of live or frozen foods like brine shrimp and mysis shrimp will ensure their nutritional requirements are met.


Linear Blenny Aquaculture Availability


While the Linear Blenny is less commonly aquacultured than other marine species, it is periodically available to hobbyists through responsible aquaculture initiatives and reputable suppliers.


Linear Blenny Compatibility with Other Fish and Invertebrates


The Linear Blenny is known for its peaceful temperament. It can coexist harmoniously with many other fish and invertebrate species, provided they are not aggressive or overly territorial. Compatibility largely depends on the specific inhabitants of your aquarium, so it is essential to research and select tank mates carefully.


Linear Blenny Sexual Dimorphism


The Linear Blenny exhibits minimal sexual dimorphism, making it challenging to visually distinguish between males and females without observing their behavior during breeding.


Linear Blenny Juvenile to Adult Coloration Changes


Juvenile Linear Blennies are often adorned with horizontal stripes of yellow and black, which are typical of the species. As they mature into adulthood, their coloration can include shades of blue and yellow, creating a vibrant and attractive appearance.


Linear Blenny Temperament


The Linear Blenny is known for its peaceful and inquisitive temperament. It is an active swimmer frequently observed perching on rocks or corals. Their playful antics and curious nature can provide entertainment for hobbyists.


Linear Blenny Tank Requirements


To ensure your Linear Blenny's well-being, providing a suitable tank environment is essential. Here are some specific requirements:     

  • Minimum Aquarium Size: A tank with a minimum capacity of 30 gallons is recommended to accommodate the Linear Blenny comfortably.
  • Water Conditions:         
    • pH: Maintain a stable pH level from 8.1 to 8.4.
    • Salinity: Keep the salinity level between 1.020 and 1.025.
    • Water Temperature: Maintain a water temperature between 76°F and 82°F.
    • Water Flow: A moderate water flow is ideal, simulating the conditions of their natural reef habitat.


Linear Blenny Other Common Names


The Linear Blenny is also known by various common names, including the Striped Fang Blenny and the Striped Blenny.


Linear Blenny Five Compatible Tank Mates


When considering tank mates for the Linear Blenny, here are five compatible species to consider:     

  • Clownfish (Amphiprion spp.): These small, colorful fish are known for their symbiotic relationship with anemones and can coexist peacefully with Linear Blennies.
  • Firefish (Nemateleotris spp.): Firefish are another peaceful species that add vibrant colors and graceful movement to your aquarium.
  • Royal Gramma (Gramma loreto): These striking purple and yellow fish are known for their peaceful temperament and compatibility with various tank mates.
  • Cleaner Shrimp (Lysmata spp.): Cleaner shrimp are beneficial for maintaining your tank's health and making exciting and interactive additions to your aquarium.
  • Yellowtail Damsel (Chrysiptera parasema): These damsels are small and relatively peaceful, making them suitable companions for the Linear Blenny.


Why Choose for Your Linear Blenny is an ideal choice for purchasing your Linear Blenny for several key reasons:     

  • Quality Assurance: is renowned for providing high-quality marine fish that are carefully selected and handled to ensure they arrive in the best possible condition.
  • Health Guarantee: When you purchase from, you can expect a health guarantee, giving you peace of mind about the well-being of your Linear Blenny.
  • Expert Advice: The team at is knowledgeable about the needs and requirements of marine species, and they can provide guidance and advice to help you create the ideal habitat for your fish.


In conclusion, the Linear Blenny (Ecsenius lineatus) is a charming and peaceful addition to your saltwater marine aquarium. With proper care and a well-maintained tank environment, this species can thrive and provide beauty and entertainment for years. When considering the purchase of a Linear Blenny, stands out as a reliable and quality-focused source for your marine fish needs.

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