Description
Black Top Mouse Catfish (Hassar orestis)
Overview
The Black Top Mouse Catfish is a small, peaceful freshwater catfish known for its distinctive dark dorsal coloring and armored body. This bottom-dwelling species is hardy and intriguing, making it an excellent addition to community tanks and river-style aquariums.
Origin
South America
Feeding
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Omnivorous: accepts sinking pellets, frozen or live foods such as bloodworms, tubifex, and small crustaceans
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Benefits from occasional vegetable matter
Tank Mates
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Peaceful community fish of similar size
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Avoid aggressive species that may stress or outcompete them
Aggression
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Peaceful, bottom-dwelling
Experience Level
Beginner to intermediate
Water Parameters
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Temperature: 23–28°C (73–82°F)
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pH: 6.0–7.5
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Hardness: Soft to moderately hard
Notes
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Prefers tanks with soft substrate and hiding spots like rocks, driftwood, or plants
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Mostly nocturnal; may hide during daylight hours
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Adds activity and interest to the lower levels of aquariums
A hardy and peaceful catfish with striking markings, perfect for aquarists looking for a bottom-dwelling species with unique behavior and charm.