Fin's Fish Guide
The Japanese loach (Niwaella delicata) is a freshwater fish of the family Cobitidae that grows up to 10 cm.
Description
The Japanese loach is a small loach endemic to Japan. The species grows to about 10 cm and has a slender, laterally compressed body with a row of dark blotches along the flank and barbels around the mouth. As a bottom-dweller it roots in sand and gravel of clear rivers and streams for small invertebrates and detritus. The fish is harmless to humans and is assessed as Least Concern (LC) by the IUCN.
Frequently asked questions
How do you recognise the Japanese loach?
The Japanese loach has an elongate, eel-like body, is mainly brown and shows a spots pattern. Slender body with small barbels; roots in sand and gravel
Where does the Japanese loach live?
The Japanese loach lives in fresh water and is mostly found around sand or mud bottom. Japan
How big does the Japanese loach get?
The Japanese loach grows to a maximum of about 10 cm.
Is the Japanese loach dangerous to humans?
No, the Japanese loach is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Japanese loach edible?
The Japanese loach is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Cobitidae
Want the complete picture on the Japanese loach?
Point your camera at the fish and Fin names the species in seconds. Free, and the Japanese loach is one of 12,519 species in the app.