🐠 Fish Species Base

Featherfin Squeaker

Also known as: Synodontis eupterus

The Featherfin Squeaker (Synodontis eupterus) is a distinctive African catfish known for its elongated, feather-like dorsal fin spines and ability to produce squeaking sounds via pectoral fin movement. The Featherfin Squeaker originates from Central Africa, specifically the Congo River Basin in the Democratic Republic of the Congo and Republic of the Congo, reaches 15 cm in captivity, typically lives 8-12 years, and is kept at 24-28°C (75-82°F). Individual fish vary, so treat this as a general guide rather than a guarantee.

Species at a glance

Origin
Central Africa, specifically the Congo River Basin in the Democratic Republic of the Congo and Republic of the Congo
Adult size
15 cm (6 inches)
Life span
8-12 years
Temperament
Peaceful and nocturnal; generally non-aggressive but may be shy and reclusive during daylight hours
Tank size
120 liters (32 gallons)
Water temp
24-28°C (75-82°F)
pH range
6.0-7.5
Diet
Omnivorous; feeds on sinking pellets, frozen bloodworms, brine shrimp, and occasional vegetable matter like blanched zucchini or spirulina
Other names
Synodontis eupterus

About the Featherfin Squeaker

The Featherfin Squeaker (Synodontis eupterus) is a distinctive African catfish known for its elongated, feather-like dorsal fin spines and ability to produce squeaking sounds via pectoral fin movement. It inhabits slow-moving, sandy-bottomed rivers and streams in the Congo Basin, where it forages nocturnally along the substrate. This species is valued in aquariums for its unique appearance and peaceful demeanor, though it requires specific water conditions to thrive. Featherfin Squeakers are often kept in community tanks with similarly sized, non-aggressive fish.

Lifespan and health

With proper care, Featherfin Squeakers commonly live 8-12 years in captivity, with some individuals reaching up to 15 years under optimal conditions; longevity is strongly tied to consistent water quality, a varied diet, and low-stress environment. Common health issues include barbel erosion from rough substrates or poor water quality, which can be prevented by using soft sand and maintaining ammonia/nitrite at 0 ppm; they are also susceptible to fungal infections if injured or stressed, and ich (white spot disease) may occur if temperatures drop below 22°C (72°F) or new fish are introduced without quarantine. Regular observation for lethargy, loss of appetite, or abnormal swimming is essential, and any signs of illness should be treated promptly with appropriate medications in a quarantine tank to avoid disrupting the main tank’s biological balance.

Overview

The Featherfin Squeaker (Synodontis eupterus) is a distinctive African catfish known for its elongated, feather-like dorsal fin spines and ability to produce squeaking sounds via pectoral fin movement. It inhabits slow-moving, sandy-bottomed rivers and streams in the Congo Basin, where it forages nocturnally along the substrate. This species is valued in aquariums for its unique appearance and peaceful demeanor, though it requires specific water conditions to thrive. Featherfin Squeakers are often kept in community tanks with similarly sized, non-aggressive fish.

Care and tank setup

Tank setup should include a soft sand or fine gravel substrate to protect their delicate barbels, along with driftwood, caves, and dense planting (such as Anubias or Java fern) to provide hiding spots, as they are nocturnal and stress easily in open tanks. A minimum tank length of 90 cm (35 inches) is recommended to accommodate their active bottom-swimming behavior. Water conditions must be stable: maintain temperature between 24-28°C (75-82°F), pH 6.0-7.5, and hardness of 5-15 dGH; use a gentle filter to avoid strong currents, and perform 25% weekly water changes to keep nitrates below 20 ppm. Feeding should occur at night or in low light, offering sinking foods 2-3 times weekly; supplement with frozen or live foods like bloodworms or daphnia 1-2 times per week, and avoid overfeeding to prevent obesity and water quality issues.

Adding a Featherfin Squeaker? Research the species’ adult size and temperament carefully, quarantine new fish before introducing them to your tank, and buy from reputable aquarium stores or breeders.

Related breeds

Breed information on this page is based on the Wikipedia article on the Featherfin Squeaker, supplemented with additional research. Reviewed for accuracy.