Aquarium Heater 25W-300W Adjustable Submersible Thermometer

Adjustable Aquarium Heating for Tanks of Multiple Sizes

Maintain a comfortable water temperature with the AQUANEAT adjustable aquarium heater. Choose from five wattage options for freshwater, saltwater, fish and turtle tank setups.

Please Note: This listing includes five heater options: 25W, 50W, 100W, 200W and 300W. Select the appropriate wattage for your aquarium before ordering.

Key Benefits

• Adjustable Temperature: Top-mounted dial allows temperature settings from 65°F to 89°F.
• Automatic Thermostat: Cycles heating on and off to help maintain the selected water temperature.
• Visible Heating Indicator: Red indicator light shows when the heater is actively warming the water.
• Separate Thermometer Included: Makes it easier to monitor the aquarium’s actual water temperature.
• Freshwater & Saltwater Use: Suitable for freshwater, marine, fish and turtle aquariums.

Wattage Guide

• 25W: Recommended for approximately 3–5.5 gallon tanks
• 50W: Recommended for approximately 5–15 gallon tanks
• 100W: Recommended for approximately 15–30 gallon tanks
• 200W: Recommended for approximately 30–50 gallon tanks
• 300W: Recommended for approximately 40–75 gallon tanks

Product Details

• Five selectable wattages: 25W, 50W, 100W, 200W and 300W
• Temperature range: 65°F–89°F
• Power supply: 110–120V corded electric
• Includes one heater, two suction cups and one thermometer
• Heater dimensions and cord length vary by selected wattage

Important Safety Information: Fully submerge and secure the heater before connecting it to power. Never operate or touch the heater outside the water while it is powered. Unplug it and wait at least 10 minutes before aquarium maintenance, water changes or removal.

Choose the wattage that matches your aquarium and monitor the water regularly with the included thermometer.

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