Fluval P25 Pre-Set Submersible Aquarium Heater – 25W

Fluval P25 Pre-Set Submersible Aquarium Heater – 25W

The Fluval P25 Pre-Set Aquarium Heater is a compact, easy-to-use heater designed for nano aquariums up to 6 gallons. Pre-set to maintain a comfortable temperature range of approximately 76–78°F, this heater is a simple option for small freshwater or saltwater setups.

Its fully submersible design allows for flexible placement inside the aquarium, while the durable shatterproof polymer construction helps protect both your tank and livestock.

Key Features

• 25-watt pre-set aquarium heater
• Recommended for aquariums up to 6 gallons / 25 liters
• Preset temperature range of approximately 76–78°F / 24–26°C
• Fully submersible and waterproof design
• Shatterproof polymer construction
• LED running lamp indicates when heater is in use
• Compact design for nano aquariums
• Suitable for freshwater and saltwater aquariums

Product Specifications

• Brand: Fluval
• Model: P25
• Item Number: A744
• UPC: 015561107440
• Wattage: 25W
• Aquarium Size: Up to 6 US gallons / 25 liters
• Temperature: Preset to approximately 76–78°F / 24–26°C
• Dimensions: 5.9" L x 1.1" W x 0.68" H

Best For

• Betta aquariums
• Nano freshwater tanks
• Small planted aquariums
• Shrimp tanks where stable temperature is needed
• Small saltwater nano setups

Important Note

For best performance, keep the heater fully submerged while in use. Room temperature, aquarium size, water movement, and tank placement can affect heating performance.

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