Description
Glass Catfish (Kryptopterus vitreolus)
The Glass Catfish is one of the most fascinating and unique freshwater fish in the hobby, instantly recognizable by its completely transparent body. Native to the clear rivers of Thailand, this species has see-through skin and organs, allowing its skeleton to be visible. This ghostly appearance, combined with its peaceful schooling nature, makes it a true standout in community aquariums.
Glass Catfish are gentle, midwater swimmers that thrive when kept in groups of six or more. They prefer aquariums with gentle water flow, dim lighting, and plenty of open swimming space. Despite their delicate appearance, they are hardy when kept in stable, well-maintained aquariums and are ideal companions for other peaceful fish such as rasboras, tetras, and dwarf cichlids.
Quick Facts:
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Scientific Name: Kryptopterus vitreolus
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Common Name: Glass Catfish, Ghost Catfish
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Origin: Southeast Asia – Thailand (Chao Phraya and river systems)
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Max Size: ~3–4 inches
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Temperament: Peaceful, schooling
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Diet: Omnivorous – micro pellets, flakes, frozen/live foods (daphnia, brine shrimp, bloodworms)
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Tank Size: 20+ gallons (larger recommended for schools)
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Water Parameters:
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Temperature: 24–28°C (75–82°F)
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pH: 6.0–7.5
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Hardness: Soft to moderate (3–12 dGH)
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Experience Level: Beginner to intermediate
Why Choose the Glass Catfish?
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Unique transparent body – one of the most striking fish in the hobby
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Peaceful schooling species, perfect for community aquariums
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Graceful midwater swimmers with fascinating group behavior
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A conversation starter and true “living curiosity”
