The Good Fish / Bad Fish Tool
for Saltwater Aquariums

Yellow Eye Kole Tang

Yellow Eye Kole Tang

Brown body; distinct yellow ring around eye; fine light blue lines on body; fine light blue spots on head. The aquarium trade has heavily impacted Yellow Eye Kole populations on Hawaii reefs. Attempts at captive breeding have been unsuccessful. Read More
Yellow Tang

Yellow Tang

Solid yellow; enlarged dorsal and anal fins that can be flared to give a sail-like appearance; somewhat elongated snout and mouth. Until recently, all Yellow Tangs hailed from Hawaii’s reefs where their abundance has been severely depleted for the aquarium... Read More
Achilles Tang

Achilles Tang

Dark blue to black; orange large teardrop near tail base; orange and white tail; white stripes at bases of dorsal and anal fins. The Achilles Tang has been severely overharvested by the aquarium trade in Hawaii with populations down to a small percentage of their... Read More
Blue Tang

Blue Tang

Blue body; dark/black hook shaped marking between eye and tail; tail is yellow bordered in black. Since being cast as “Dory” in the movie “Finding Nemo”, Blue Tangs are disappearing from their native reefs from increasing hobby demand.... Read More
Clown Tang

Clown Tang

Yellow to orange base on mid to upper body with dark edged blue stripes; blue/grey belly. To 15 inches.  Many Clown Tangs are captured with cyanide, an illegal practice harming both fish and reefs. Attempts at captive breeding have been unsuccessful. Read More