Mekong glass sheatfish
Kryptopterus limpok
Also known as Limpok glass catfish, Mekong misker cat
FreshwaterFish

Care at a glance
- Temperature
- 73–81°F
- 23–27°C
- pH
- 6.0–7.5
- Adult size
- 11.8 in
- 30 cm
- Minimum tank
- 119 gal
- 450 L
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Middle
- Diet
- Carnivore
- Difficulty
- Medium
- Breeding
- No record
- Rarity
- Rare
- Family
- Siluridae
- Origin
- Mekong and Chao Phraya basins
Overview
The Mekong glass sheatfish is a large, mostly peaceful catfish for a long, roomy tank. It is a step up from the easiest fish.
Did you know
The Mekong glass sheatfish is essentially the familiar two-inch glass catfish scaled up many times over. In larger fish, the see-through body of youth gives way to a heavier, silvered adult.
Caring for the Mekong glass sheatfish
Give the Mekong glass sheatfish length rather than height, in a long tank of at least 119 gal (450 L). Leave open midwater swimming space, with driftwood and a few plants to break sightlines rather than fill the tank. Keep the light subdued.
Keep the water warm, at 73 to 81°F (23 to 27°C) and a pH of 6.0 to 7.5, with a steady, gentle to moderate current. They hang in the current in loose formation. Clean, well-oxygenated water and low nitrate keep the group in good order.
Feed meaty foods such as frozen bloodworm, prawn and small sinking pellets. They take their food from the water column.
Mekong glass sheatfish are social, and a group of five or more keeps them confident and out in the open. They are large predators and will eat small fish, so pair them with sturdier midwater and bottom tank mates of reasonable size. No captive spawning has been documented.
Good to know
Kryptopterus limpok is a silurid that swims and feeds in open water rather than on the bottom, which is unusual for a catfish. It is also sold as the limpok glass catfish or Mekong misker cat.
In the wild
The Mekong glass sheatfish ranges widely through the Mekong and Chao Phraya basins and other large Southeast Asian rivers. It favors flowing, often turbid water carrying suspended sediment.
Weekly picks
Tank mates
The Mekong glass sheatfish is a mostly peaceful, social species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Black-top mouse catfish
Hassar orestis
Freshwater11.8 in (30 cm) · 106 gal (400 L)73–82°F (23–28°C)
Giant river hatchetfish
Triportheus rotundatus
Freshwater9.8 in (25 cm) · 79 gal (300 L)73–82°F (23–28°C)
Inirida severum
Heros sp. 'Inirida'
Freshwater11.8 in (30 cm) · 119 gal (450 L)75–82°F (24–28°C)
Wilder's mouse catfish
Hassar wilderi
Freshwater9.8 in (25 cm) · 106 gal (400 L)73–82°F (23–28°C)
Largescale four-eyed fish
Anableps anableps
FreshwaterBrackish11.8 in (30 cm) · 70 gal (265 L)77–88°F (25–31°C)
Nurse tetra
Brachyalestes nurse
Freshwater9.8 in (25 cm) · 106 gal (400 L)73–82°F (23–28°C)
Common questions
What size tank does a Mekong glass sheatfish need?
A Mekong glass sheatfish needs at least 119 gal (450 L). It spends most of its time in the middle.
What temperature and pH does a Mekong glass sheatfish need?
A Mekong glass sheatfish is comfortable at 73–81°F (23–27°C) with a pH of 6.0–7.5.
What does a Mekong glass sheatfish eat?
A Mekong glass sheatfish eats meaty foods, such as frozen bloodworm, prawn and small sinking pellets, taken from the water column. It is a large predator and will eat small fish.
How big does a Mekong glass sheatfish get?
An adult Mekong glass sheatfish reaches about 11.8 in (30 cm).
Related species
3.5 in (9 cm)36 gal (135 L)70–79°F (21–26°C)Striped glass catfish
Kryptopterus macrocephalus
3.5 in (9 cm) · 36 gal (135 L)
2.8 in (7 cm)30 gal (115 L)70–79°F (21–26°C)Glass catfish
Kryptopterus vitreolus
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5.9 in (15 cm)26 gal (100 L)70–79°F (21–26°C)True glass catfish
Kryptopterus bicirrhis
5.9 in (15 cm) · 26 gal (100 L)
11.8 in (30 cm)106 gal (400 L)73–81°F (23–27°C)Ompok catfish
Ompok pabda
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6.5 in (16.5 cm)45 gal (170 L)70–82°F (21–28°C)Borneo glass catfish
Ompok eugeneiatus
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17.7 in (45 cm)172 gal (650 L)68–82°F (20–28°C)Butter catfish
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