Fancy Fish and Aquascapes
Glass Catfish ~ Kryptopterus vitreolus
Glass Catfish ~ Kryptopterus vitreolus
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Description & Care Guide:
The Glass Catfish is a fascinating and unique species known for its transparent body, which gives it a "glass-like" appearance. These peaceful fish are often admired for their sleek, elongated form and their ability to swim gracefully in schools. They are nocturnal by nature, though they can be active during the day in well-established tanks. Glass Catfish are best kept in groups of at least 6, as they are a schooling species that thrives on social interaction. Due to their delicate nature and transparency, they should be housed in peaceful aquariums with no aggressive tank mates.
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Difficulty Level: Moderate
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Tank Size: Minimum 30 gallons
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Food Requirements: Omnivorous – accepts flakes, pellets, and live or frozen foods such as brine shrimp, daphnia, and bloodworms
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Temperament: Peaceful and social; best kept in schools of 6 or more
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Water Parameters: Prefers slightly acidic to neutral water (pH 6.5 - 7.5), temperatures between 72-78°F (22-26°C)
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Full Grown Size: 3-4 inches (8-10 cm)
Wild Habitats/Origins:
Native to the rivers and streams of Southeast Asia, particularly in Thailand, Vietnam, and Malaysia, the Glass Catfish inhabits clear, fast-flowing waters. These fish prefer environments with abundant vegetation and hiding spots, where they can feel safe while foraging for small invertebrates. In the wild, they thrive in oxygen-rich, slightly acidic waters and can be found in regions with low to moderate currents.
Fun Fact:
The Glass Catfish's transparent body isn’t just for looks—it helps them blend in with their environment, making it easier to avoid predators. Their "see-through" nature also allows aquarists to observe their internal organs, creating a unique and fascinating display in the aquarium.