These fish belong to the family Microdesmidae, or Wormfishes. Before 1986, the Firefish or Fire Dartfish were classified as blennies and gobies. The Wormfishes comprise 36 species of eel-like fishes that include the closely related Purple Firefish, Nemateleotris decora. Their elongated dorsal fin is used to signal other firefish as well as a "locking device" similar to the triggerfish.
Thats right, this is a Helfrichi firefish, not a purple firefish. This is the more expensive (or rare?) firefish.
gamefreak0109 1 year ago
those are purple firefish, they are helfrichi firefish
espocrespo 2 years ago