Krynicki's loach (Oxynoemacheilus merga), first described by Krynicki, 1840 is a small fish in the family Nemacheilidae (order Cypriniformes). Adults typically reach 10.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Nemacheilidae kept in the hobby.
Can be diagnosed from its congeners in Europe by the possession of the following unique characters: caudal emarginate; no processus dentiformis; and dorsal fin with 7½ branched rays. Can be further distinguished by its caudal peduncle depth 2.1-2.4 times in its length, 2.0-2.5 times in body depth .: elongated.
Behavioural data for Krynicki's loach is currently being reviewed.
Freshwater; benthopelagic. Temperate; 10°C - 22°C
The following diseases are known to affect Krynicki's loach.
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