Common name: Blue gudgeon

General information

The Blue Gudgeon Dartfish, scientifically known as Ptereleotris microlepis, is a small and colorful marine fish that is popular among reef aquarium enthusiasts. It is known for its slender body, vibrant blue coloration, and long, flowing dorsal fin. This species is relatively peaceful and can be a great addition to a community tank.

Care

Blue Gudgeon Dartfish are best kept in aquariums with plenty of hiding places and a sandy substrate to mimic their natural environment. They are jumpers, so a tightly fitting lid is essential to prevent escape. These fish are not aggressive and can be kept with other peaceful tank mates. They thrive on a varied diet of meaty foods such as brine shrimp, mysis shrimp, and finely chopped seafood.

Reproduction

In the wild, Ptereleotris microlepis forms monogamous pairs and spawns in burrows. In captivity, breeding is rare, but with a well-established pair in a peaceful environment, spawning may occur. The eggs are adhesive and will be attached to the substrate or tank decorations.

Habitat

Blue Gudgeon Dartfish are found in the Indo-Pacific region, from the Red Sea to South Africa and east to the Line Islands. They inhabit lagoons and seaward reefs, often seen hovering above the bottom where they dart into burrows or crevices when threatened. They typically reside at depths ranging from 2 to 30 meters.