Common name: Scissortail dartfish

General information

The Blue Gudgeon Dartfish, Ptereleotris evides, is a small, peaceful marine fish known for its striking blue coloration and elongated body. It is a popular choice among reef aquarium enthusiasts due to its vibrant appearance and active swimming behavior. This species is often seen hovering above the substrate or darting around rockwork in the aquarium.

Care

Blue Gudgeon Dartfish are relatively easy to care for but do require a tank with plenty of hiding places and a tightly fitting lid, as they are known jumpers. They thrive in a well-established aquarium with stable water conditions and a sandy substrate. These fish are carnivorous and should be fed a varied diet of meaty foods, including frozen mysis shrimp, brine shrimp, and finely chopped seafood.

Reproduction

In the wild, Ptereleotris evides forms monogamous pairs and spawns in burrows. In the aquarium, breeding is less common, but with a well-established pair, spawning may occur. The eggs are adhesive and will be attached to the substrate or rockwork.

Habitat

The Blue Gudgeon Dartfish is found in the Indo-Pacific region, from the Red Sea to South Africa and east to Samoa, north to the Ryukyu Islands, and south to the Great Barrier Reef. They typically inhabit lagoons and seaward reefs, often found in burrows or caves at depths ranging from 6 to 40 meters.