Helfrich's Firefish (Nemateleotris helfrichi)

Fish in the family Microdesmidae. Moderate care. Reef Safe.

Helfrich's Firefish

Quick facts

Scientific nameNemateleotris helfrichi
FamilyMicrodesmidae
Care levelModerate
Reef safetyReef Safe
TemperamentPeaceful
Dietcarnivore
Adult size3.5 in
Minimum tank size20 gallons
Water parametersTemperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding schedule3-4 times daily

Appearance

A slender, elongated goby with striking red coloration on the head and upper body that fades to white or pale yellow posteriorly. The dorsal fin is tall and sail-like, and the pectoral fins are large and fan-shaped, used for hovering and substrate movement.

Diet and feeding

Feeds on small crustaceans, copepods, and other zooplankton in the wild. In captivity, requires frequent feedings of live or frozen foods such as mysis shrimp, copepods, and small amphipods; dried foods are often rejected.

Difficulty and care for the Helfrich's Firefish

Beginner

Common health issues

Marine ich, Fin rot, Swim bladder disorder, Hole-in-the-head disease, Columnaris disease

Origin and habitat

Indo-Pacific, from the Philippines and Indonesia to Micronesia and Palau, typically found at depths of 40–200 meters.

Log Helfrich's Firefish in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Helfrich's Firefish alongside everything else in your reef.