Linear Blenny
Ecsenius lineatus
Saltwater Fish
Species Group: Blenny
Family: Blenniidae
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Water parameters
Temp
76-80 F
Temperature
Maintaining a stable and appropriate temperature is critical for the survival of aquatic life.
pH 7.8 - 8.4 potential of HydrogenMeasuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.
NO3 1-20 ppm NitrateWhile less toxic than ammonia, high nitrate levels (above 40–80 ppm) are important to monitor because they can cause fish stress, stunted growth, and harmful algae blooms.
NO2 <0.0001 ppm NitriteIt is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia
PO4 0.01 - 0.1 ppm PhosphateIt is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.
NH3 <0.1 ppm AmmoniaIt is the primary killer of aquarium fish, causing gill damage, stress, and death
Ca 380 - 450 ppm CalciumSupporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae
KH 8 - 12 dKH AlkalinityIt acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.
Mg 1200 - 1400 ppm MagnesiumIt enables coral growth by supporting skeletal formation, assists in metabolic processes, and ensures that calcium is available for corals, clams, and coralline algae.
SG 1.023 - 1.026 SG SalinityEssential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals
ORP 250 - 400 mV Oxidation-Reduction PotentialA higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.
About Linear Blenny
General information
The Linear Blenny is a small and colorful fish that can grow up to 4 inches in length. They are commonly found in the Western Pacific Ocean, from Indonesia to Papua New Guinea, and are known for their bold striped pattern. This species is popular in the aquarium trade due to its vibrant colors and active behavior.
Diet & nutrition
The Linear Blenny is a carnivorous species and requires a diet that is high in protein. They will eat a variety of foods, including small crustaceans, brine shrimp, and other small meaty foods. It is recommended to feed them small amounts of food multiple times a day to mimic their natural feeding behavior.
Diseases
Blennies are generally hardy and not prone to many diseases. However, they may be susceptible to common saltwater fish diseases such as ich and velvet. Proper aquarium maintenance, including regular water changes and monitoring water parameters, can help prevent the onset of disease.
Origination
The Linear Blenny is native to the Western Pacific Ocean, where it can be found from Indonesia to Papua New Guinea.
Cautions
The Linear Blenny is generally not aggressive towards other fish but may be territorial towards its own kind. It is not known to be venomous or harmful to humans.
Acclimation process
When introducing a Linear Blenny to a new aquarium, it is important to acclimate them slowly to their new environment. This can be done by gradually adding small amounts of water from the new aquarium to the bag containing the fish over a period of 30-45 minutes before releasing it into the new tank.
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