Red Belted Goby Care Guide
Sicyopus zosterophorus · Freshwater Fish

What Red Belted Goby look like
The Red Belted Goby (Sicyopus zosterophorus) is a diminutive, laterally compressed fish, typically measuring between 3 to 10 centimeters in maximum adult size. Males exhibit pronounced sexual dimorphism, characterized by a vivid red band encircling their bodies, which serves as a distinguishing feature from the more uniformly colored females. This species possesses a fused pelvic suction disc, an adaptation that allows it to adhere to substrates in fast-flowing streams. The body is elongated and fusiform, with a slightly flattened head and a terminal mouth equipped with small, conical teeth suited for grazing on algae and detritus. The lateral line system is well-developed, aiding in the detection of water movements in its swift aquatic environment. Additionally, the Red Belted Goby features a dorsal fin that is continuous with the caudal fin, enhancing its maneuverability in turbulent waters.
Behavior & temperament
Sicyopus zosterophorus is primarily a benthic species, often found in the substrate of fast-flowing streams and rivers in Southeast Asia and the Pacific. It exhibits a solitary to semi-social behavior, with individuals often establishing small territories. The Red Belted Goby is not an obligate schooler, but it can be observed in loose aggregations during breeding periods. Breeding behavior involves egg scattering, where females release eggs over suitable substrates, which are then fertilized by males. This species is generally peaceful but can display territorial aggression during the breeding season, particularly among males competing for prime nesting sites.
Diet & feeding
In the wild, the Red Belted Goby primarily feeds on algae, detritus, and small invertebrates, reflecting its herbivorous tendencies. In captivity, it requires a diet rich in spirulina and other plant-based foods, supplemented with occasional protein sources such as finely crushed flakes or live foods to ensure optimal health.
Behind the name
Sicyopus (from Greek 'sikyon', meaning 'sucker', and 'opus', meaning 'foot'); zosterophorus (from Greek 'zoster', meaning 'belt' or 'girdle', and 'phoros', meaning 'bearing' or 'carrying').
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Red Belted Goby?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.



