Bluestreaked Blenny
Blenniella periophthalmus
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 Bluestreaked Blenny
General information
The Bluestreaked Blenny is a small species of blenny that typically grows to about 3 inches (7.5 cm) in length. They have a slender, elongated body and are light brown with a series of blue stripes running vertically down their body. Bluestreaked Blennies are peaceful and can be kept in small aquariums with other peaceful fish species. They are commonly found in the Indo-Pacific region and are popular in the aquarium trade.
Diet & nutrition
Bluestreaked Blennies are omnivorous and their diet should include a variety of foods, including meaty and plant-based foods. They can be fed a combination of frozen or live brine shrimp, mysis shrimp, chopped seafood, and algae-based foods.
Determining sex
It can be difficult to determine the sex of Bluestreaked Blennies, as there are no external physical differences between males and females.
Breeding & spawning
Breeding Bluestreaked Blennies in captivity is challenging, and there is limited information available on their breeding behavior. In the wild, they typically spawn in pairs on rocky or coral substrates.
Diseases
Bluestreaked Blennies are generally hardy and disease-resistant. However, like all fish, they can be susceptible to common aquarium diseases such as ich and fin rot. Maintaining good water quality and providing a balanced diet can help prevent these diseases.
Origination
The Bluestreaked Blenny is native to the Indo-Pacific region, including the Red Sea, eastern Africa, and the Maldives.
Cautions
Bluestreaked Blennies are generally peaceful and pose no threat to humans. However, they may become aggressive towards other small, similar-looking fish species in the aquarium.
Acclimation process
Bluestreaked Blennies should be acclimated slowly to their new aquarium environment to prevent stress and disease. They can be drip acclimated over a period of 1-2 hours to gradually adjust to the water conditions.
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