Thermometer Knifefish

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Description: The Thermometer Knifefish, scientifically known as Gymnotus hypostomus, is an intriguing species revered for its unique elongated body and specialized sensory organs. With its streamlined shape and distinctively long anal fin, this fish exhibits a remarkable resemblance to a thermometer, hence its common name.

Behavior: Thermometer Knifefish are nocturnal and predominantly solitary creatures, often hiding during the day and becoming more active at night. They possess electroreceptors that enable them to navigate and communicate using weak electric fields.

Tank Requirements: Due to their large size and active nature, Thermometer Knifefish require a spacious tank of at least 75 gallons to accommodate their swimming needs. Provide plenty of hiding spots with caves, driftwood, and rocks, along with a soft substrate to mimic their natural habitat.

Water Parameters: Maintain tropical water conditions with temperatures ranging from 75°F to 82°F (24°C to 28°C). Keep the pH level neutral to slightly acidic, ideally between 6.5 to 7.5, and ensure good water quality through regular maintenance and filtration.

Diet: Thermometer Knifefish are carnivorous and primarily feed on live foods such as small fish, insects, and crustaceans. Offer them a varied diet consisting of high-quality frozen or live foods like bloodworms, brine shrimp, and earthworms to meet their nutritional needs.

Compatibility: These knifefish can be aggressive towards conspecifics and similarly sized tank mates, especially if they feel threatened. It's best to keep them in a species-specific setup or with large, robust tank mates that can hold their own against potential aggression.

Max Size: 12 inches