Pearly Gudgen Dartfish – Ptereleotris sp.

The Pearly Gudgen Dartfish is a sleek, peaceful saltwater fish known for its elongated body and iridescent sheen. This active swimmer prefers to hover near rock formations or burrow in sandy substrates, making it a great addition to reef and community aquariums. Its peaceful nature and schooling behavior make it an ideal choice for hobbyists looking for a lively yet non-aggressive species.

Description:

Common Name: Pearly Gudgen Dartfish

Scientific Name: Ptereleotris sp.

Family: Gobiidae

Size: 4-5 inches (10-12.5 cm)

Temperament: Peaceful

Difficulty: Easy

Reef Safe: Yes

Native Region:

Pearly Gudgen Dartfish are found in tropical marine waters across the Indo-Pacific, often residing near reef slopes and sandy lagoons where they form small groups.

Aquarium Setup:

Tank Size: Minimum of 30 gallons

Temperature: 74-80F (23-27C)

pH: 8.0-8.4

Salinity: 1.023-1.025

Substrate: Fine sand with ample rockwork for shelter.

Additional Tips:

Schooling Behavior: Best kept in small groups to encourage natural schooling and reduce stress.

Compatibility: Peaceful and ideal for reef tanks; should not be housed with aggressive tankmates.

Diet: Carnivorous; feeds on small meaty foods like mysis shrimp, brine shrimp, and high-quality marine pellets.

Cover: A secure lid is recommended, as dartfish are prone to jumping when startled.