Fluval P25 Submersible Aquarium Heater – 25W, Shatterproof & Fully Submersible, Preset 76-78°F for Freshwater & Saltwater Tanks up to 6 Gal, LED Indicator, Safe & Durable Nano Tank Heater

Keep your small aquarium at the perfect temperature with the P25 Submersible Aquarium Heater. This 25W heater is pre-set to 76-78°F (24-26°C) for effortless, worry-free use in nano aquariums. Built with a shatterproof polymer exterior, it ensures safety and durability for both freshwater and saltwater tanks up to 6 gallons (25L). Its fully submersible, waterproof design allows flexible placement, while the LED indicator shows when it's actively heating.

• Preset Temperature for Easy Use: No adjustments needed! The P25 heater maintains a stable 76-78°F (24-26°C), providing an ideal environment for tropical fish in nano aquariums
• Shatterproof & Durable Build: Strong polymer construction resists damage, keeping both your aquarium and aquatic life safe from potential breakage or overheating
• Fully Submersible & Waterproof: Designed for effortless positioning, this compact heater fits discreetly inside any freshwater or saltwater tank up to 6 gallons (25L)
• LED Indicator for Active Heating: The built-in LED light illuminates when the heater is in operation, so you always know when it's working to maintain a consistent water temperature
• Reliable Heating for Small Tanks: Perfect for betta tanks, nano reefs, shrimp habitats, and planted aquariums, ensuring stable, uniform heating in both freshwater and saltwater setups