Dojo Loach Identification Guide

Key identification features

• Long, slender, almost eel-like body with a rounded cross-section and small embedded scales
• Mottled olive, brown, or gray coloration with darker speckling along the back and flanks; selectively bred forms can be solid gold, orange, or pink-albino
• Five pairs of sensory barbels surrounding a small, downturned mouth
• Rounded tail fin and low, unremarkable dorsal fin set well back on the body
• Grows notably long for a loach, commonly 8-10 inches (20-25 cm) and occasionally more

Common look-alikes

• Weather loach — the same species (Misgurnus anguillicaudatus); "dojo" and "weather loach" are simply alternate common names
• Kuhli loach — much thinner, banded orange-and-black body, far smaller in size
• American eel — lacks barbels and has a single continuous dorsal-tail-anal fin fringe rather than separate fins

Where you'll see one

Native to rice paddies, ponds, and slow, muddy rivers across East Asia, from China to Korea and Japan, and now established in many other regions where it was introduced. It burrows into soft substrate and tolerates cold water and low oxygen far better than most other loaches, often overwintering in pond mud.