Sumatran neon loach
Pangio bitaimac
Also known as Neon kuhli loach, Two-spot kuhli
Care at a glance
- Temperature
- 73–82°F (23–28°C)
- pH
- 5.0–7.0
- Adult size
- 3.7 in (9.5 cm)
- Minimum tank
- 14 gal (54 L)
- Temperament
- Peaceful
- Social behavior
- Social
- Swim level
- Bottom
- Difficulty
- Medium
- Breeding
- Hard
- Rarity
- Rare
- Origin
- Blackwater streams of Sumatra, Indonesia
- Family
- Cobitidae
Overview
A slender, active kuhli that lives near the bottom and settles best in a group of six or more, feeding after dark like the rest of its family. It threads through leaf litter and roots by day and comes out to hunt small prey at night, so give it a floor of soft sand and plenty of cover. It is peaceful and safe with small tankmates, though it grows longer and more eel-like than the little banded kuhlis it is sold beside, so allow it room. Feed small sinking foods, frozen bloodworm, and live blackworm. Start a group in at least 54 liters, and give more length as they grow.
In the wild
The Sumatran neon loach comes from the Batang Hari drainage in Sumatra, in soft, peat-stained blackwater streams over sand and litter. Recreate that with a fine sand bed, driftwood, botanicals, and tannin-darkened water. Keep it warm at 23 to 28 degrees Celsius and soft and acidic, with pH from 5.0 to 7.0. Dim light and a mature, quiet tank suit this secretive fish.
Good to know
Pangio bitaimac is an eel-loach of the family Cobitidae, described in 2009. It belongs to the elongate anguillaris group of kuhlis and reaches roughly 9 to 10 centimeters, longer and more worm-like than the familiar banded species. Breeding it in aquaria is difficult and rarely, if ever, achieved. Despite the trade name neon, its colours are subtle: a dark stripe over purplish skin with a reddish tail.
Did you know
Its odd name comes from bee tai mak, a short, thick rice noodle eaten across Southeast Asia, chosen for the fish's plump, slippery, noodle-like body rather than for any colour or marking.
Tank mates
Sumatran neon loach is a peaceful, social species that keeps to the bottom. These picks match on water type, temperature, pH, size and temperament.

Drape-fin barb
Oreichthys crenuchoidesFreshwater1.6 in (4 cm)14 gal (54 L)73–82°F (23–28°C)
Spot-tail curimata
Curimatopsis evelynaeFreshwater1.6 in (4 cm)14 gal (54 L)73–82°F (23–28°C)
Branco dwarf cichlid
Biotoecus dicentrarchusFreshwater2 in (5 cm)14 gal (54 L)75–82°F (24–28°C)
Panda darter tetra
Aphyocharax nattereriFreshwater1.4 in (3.5 cm)14 gal (54 L)72–81°F (22–27°C)
Colombian gold tetra
Hyphessobrycon saiziFreshwater1.4 in (3.5 cm)14 gal (54 L)73–82°F (23–28°C)
Korthaus rasbora
Pectenocypris korthausaeFreshwater1.7 in (4.2 cm)14 gal (54 L)73–82°F (23–28°C)
Common questions
What size tank does a Sumatran neon loach need?
A Sumatran neon loach needs at least 14 gal (54 L). It spends most of its time in the bottom.
What temperature and pH do Sumatran neon loach need?
Sumatran neon loach are comfortable at 73–82°F (23–28°C) with a pH of 5.0–7.0.
How big do Sumatran neon loach get?
An adult Sumatran neon loach reaches about 3.7 in (9.5 cm).
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Freshwater fish · Loaches · Community fish · Bottom dwellers
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Related species

Giant kuhli loach
Pangio myersiFreshwater3.9 in (10 cm)20 gal (75 L)72–82°F (22–28°C)
Half-banded kuhli loach
Pangio semicinctaFreshwater3.9 in (10 cm)28 gal (105 L)70–79°F (21–26°C)
Kuhli loach
Pangio kuhliiFreshwater3.9 in (10 cm)20 gal (75 L)72–82°F (22–28°C)
Java loach
Pangio oblongaFreshwater3.1 in (8 cm)25 gal (95 L)70–79°F (21–26°C)
Shelford's kuhli loach
Pangio shelfordiiFreshwater3.1 in (8 cm)24 gal (90 L)72–81°F (22–27°C)
Eel kuhli loach
Pangio anguillarisFreshwater4.7 in (12 cm)20 gal (75 L)72–82°F (22–28°C)