Blue Gudgeon Dartfish (Ptereleotris heteroptera)

Blue Gudgeon Dartfish (Ptereleotris heteroptera)

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The Blue Gudgeon Dartfish, commonly referred to as the Blacktail Goby or Blacktail Dartfish, originates from the reefs of Fiji. They have an elongated body, which is pale blue or green in color with a prominent black spot on their tail. They enjoy being in pairs, and make a wonderful fish for a fish only or reef aquarium.

It should be housed in a 30 gallon or larger aquarium with plenty of loose coral rubble, and requires ample swimming room with a sand bottom for burrowing. It may try to jump out of the aquarium or other small opening, so a tight-fitting lid is required. Rarely will it become aggressive towards other fish.

Approximate Purchase Size: Small: 1"-2-1/4; Medium: 2-1/4" to 3-1/2"; Large: 3-1/2" to 4-1/2"