Fish Encyclopedia
Search and identify 1,000+ fish species — freshwater, saltwater, reef, and pelagic — with habitat, size, diet, behavior, and how to tell them apart.
Gudgeon
A small, bottom-dwelling cyprinid with a pair of sensory barbels at the mouth corners, the gudgeon forages over gravel and sand in loose shoals, well camouflaged among stones.
freshwater
Peacock Gudgeon
A vividly colored, peaceful gudgeon from Papua New Guinea, prized in aquariums for its blue-spangled body, orange fins, and calm temperament rare among small predatory fish.
freshwater
Purple Spotted Gudgeon
A stocky, olive-brown Australian freshwater fish covered in scattered iridescent purple-blue spots, favoring weedy, slow-moving streams and lagoons.
freshwater
Peacock Goby
A small, brightly colored sleeper goby from Papua New Guinea, with a rounded body patterned in iridescent blue spots over an orange-to-purple base. A dark eye-like spot near the tail gives it its scientific species name.
freshwater