Three-Spot Damselfish (Dascyllus trimaculatus)

Fish in the family Pomacentridae. Easy care. Reef Safe with Caution.

Quick facts

Scientific nameDascyllus trimaculatus

FamilyPomacentridae

Also known asThreespot Dascyllus, Three-Spot Dascyllus

Care levelEasy

Reef safetyReef Safe with Caution

TemperamentAggressive

Dietomnivore

Adult size5.5 in

Minimum tank size30 gallons

Water parametersTemperature: 72-82°F pH: 8-8.3 Salinity: 1.02-1.025

Feeding schedule1-2 times daily

Appearance

A small, stocky damselfish with a dark blue-black body and three distinctive white spots—one on the head and two on the dorsal region. The fins are dark with the dorsal and anal fins edged in blue. The body is compressed laterally and the overall appearance is robust.

Diet and feeding

Feed a varied diet of high-quality flake food, small pellets, and frozen foods such as mysis shrimp, brine shrimp, and chopped vegetables. Feed 1-2 times daily in established aquaria.

Difficulty and care for the Three-Spot Damselfish

Easy - Suitable for beginners with basic care requirements and hardy nature.

Common health issues

Ich, velvet, head and lateral line erosion (HLLE)

Origin and habitat

Indo-Pacific from the Red Sea and East Africa to the Great Barrier Reef, Micronesia, and Polynesia, typically found in coral reef environments at depths of 5-40 meters.

Log Three-Spot Damselfish 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 Three-Spot Damselfish alongside everything else in your reef.

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