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Genus

Paracanthocobitis

Species
4
Photographed
4 of 4
Difficulty rated
4 of 4
Wild specimen from an unspecified locality.

Paracanthocobitis botiaZipper Loach

Hamilton, 1822

Max length
152mm SL6in SL
Tank
75 × 30cm30 × 12in
Temp
21–26°C70–79°F
pH
6.0–7.5

Traded under various names including 'mottled', 'eyepot', 'sand' and 'striped' loach. It's perhaps one of the better choices for those new to keeping nemacheilids being relatively hardy, peaceful and exhibiting some quirky behavioural traits. The characteristic ocellus, a dark marking at the top of the caudal peduncle that resembles an eye, is thought to have some function in predator distraction and is normally more intense in younger specimens.

Easy
This species is poorly-known in the aquarium hobby.

Paracanthocobitis mooreh

Sykes, 1839

Max length
75mm SL3.0in SL
Tank
75 × 30cm30 × 12in
Temp
20–26°C68–79°F
pH
6.0–7.5

This species is still considered a member of the genus Nemacheilus by some sources, but it was reclassified and placed in Acanthocobitis by Grant (2008). Acanthocobitis sinuata, generally considered a junior synonym of A. mooreh (Kottelat, 2012b), also appears distinct and differs in geographical distribution plus number of dorsal-fin rays (2-3/9-10 in A. mooreh vs. 2/8-9 in A. sinuata) and some aspects of colour pattern.

Easy
Adult specimen from Thailand, collection details unspecified.

Paracanthocobitis pictilisCherry-fin Loach

Kottelat, 2012

Max length
91mm SL3.6in SL
Tank
90 × 30cm36 × 12in
Temp
21–26°C70–79°F
pH
6.5–7.5

Prior to description this species was considered to represent, and traded as, A. rubidipinnis, but that species is apparently endemic to the lower Irrawaddy basin in Myanmar and unknown in the aquarium hobby. Male individuals of A. pictilis, A. botia and A. mandalaysensis possess a suborbital slit rather than suborbital flap which immediately distinguishes...

Moderate
Female specimen of Acanthocobitis zonalternans.

Paracanthocobitis zonalternans

Blyth, 1860

Max length
78mm SL3.1in SL
Tank
60 × 30cm24 × 12in
Temp
20–25°C68–77°F
pH
6.0–7.5

According to Kottelat (1990) the chief distinguishing characters for the genus are: possession of 9-18½ branched dorsal-fin rays; colour pattern without black basal caudal bar, but with an ocellus at upper base of caudal-fin; upper lip with or without several rows of papillae; lower lip with a broad median interruption and a widened, papillated pad on each side.

Easy