Common name: Salt Blenny

General Information

The Salt Blenny (Parablennius salensis) is a fascinating and lesser-known species in the aquarium trade, appreciated for its quirky behavior and adaptability. This small, bottom-dwelling fish is native to the eastern Atlantic Ocean near Cape Verde, and is named after the island Sal. Its ability to thrive in rocky coastal areas and tidal pools makes it a hardy and resilient addition to marine aquariums.

Salt Blennies are characterized by their elongated bodies, mottled brown and tan coloration, and a distinctive fringe of cirri above their eyes. These cirri, along with their expressive faces, give them a charming and inquisitive appearance, making them a favorite among aquarists who enjoy observing unique fish personalities.

While not as commonly available as other blenny species, the Salt Blenny is a rewarding choice for those seeking an active and entertaining fish. Its natural behaviors, such as perching on rocks and darting between crevices, provide endless entertainment.

Care

The Salt Blenny is relatively easy to care for, making it suitable for aquarists with moderate experience. It thrives in well-established aquariums with plenty of live rock and hiding spots. These fish are territorial and will claim a specific area of the tank as their own, often retreating to the same crevice or hole when startled.

A tank with a minimum volume of 100 liters (25 gallons) is recommended to provide ample space for their active behavior. Stable water parameters, good filtration, and moderate water flow are essential for their well-being. Adding a variety of rockwork and caves will help replicate their natural habitat and reduce stress.

Diet and Feeding

Salt Blennies are omnivorous, feeding on a mix of algae and small invertebrates in the wild. In captivity, they readily accept a variety of foods, including high-quality algae-based pellets, frozen mysis shrimp, and finely chopped seafood. Supplementing their diet with live or frozen foods will help maintain their health and vibrant coloration.

Feed them once or twice daily, offering portions they can consume within a few minutes. Providing a diet rich in marine-based proteins and plant matter ensures balanced nutrition and supports their active lifestyle.

Behavior and Compatibility

Salt Blennies are known for their curious and bold personalities. They are generally peaceful but can be territorial, especially towards other blennies or similarly shaped fish. This behavior is more pronounced in smaller tanks, so providing plenty of hiding spots and visual barriers can help reduce aggression.

They are compatible with a wide range of tank mates, including peaceful community fish, invertebrates, and corals. However, avoid housing them with overly aggressive species or fish that may outcompete them for food.

Reproduction

Breeding Salt Blennies in captivity is challenging but not impossible. They are egg layers, with the female depositing eggs in a hidden crevice or hole, which the male then guards until they hatch. Providing a suitable breeding environment with plenty of hiding spots and stable water conditions is essential for success. The fry are delicate and require specialized care, including a diet of live rotifers and baby brine shrimp.

Health and Common Issues

Salt Blennies are hardy fish but can be susceptible to common marine ailments such as ich and bacterial infections. Maintaining stable water parameters, a varied diet, and a stress-free environment is key to their health. Quarantining new additions and monitoring for signs of illness will help prevent the spread of disease.

When selecting a Salt Blenny, look for active individuals with clear eyes, intact fins, and vibrant coloration. Avoid fish that appear lethargic or show signs of disease, such as white spots or frayed fins.

Habitat

In the wild, Salt Blennies are found in rocky coastal areas and tidal pools, often in shallow waters with plenty of crevices and hiding spots. They are well-adapted to environments with fluctuating conditions, such as changes in temperature and salinity, making them resilient in captivity. Replicating their natural habitat with live rock, caves, and moderate water flow will help them feel at home.