Aquarium Heater for 2–10 Gallon Tropical Tanks, Ultra-Slim Submersible Design and External Control

Keep a small tropical aquarium at a consistent temperature without crowding the tank. This ultra-slim, fully submersible aquarium heater comes in 25W and 50W versions for aquariums from approximately 2 to 10 gallons.

The separate control unit keeps temperature reading and adjustment outside the aquarium, making everyday changes easier while leaving the compact heater inside the tank.

Key Features

• An external temperature control dial makes precise adjustments accessible without reaching into the aquarium, simplifying routine temperature management.
• The adjustable 68–92°F range lets pet parents select an appropriate setting for their tropical aquarium rather than relying on a fixed temperature.
• Its fully submersible, waterproof construction supports normal underwater placement, while the slim profile takes up less room in a mini aquarium.
• Heat- and shatter-resistant glass adds protection around the heater body, bringing extra reassurance to aquarium setup and care.
• A safety mechanism automatically shuts the heater off when it is out of water, adding protection during maintenance or accidental exposure.
• Choose the 25W version for approximately 2–6 gallons or the 50W version for approximately 6–10 gallons, so heater output can be matched to tank size.

Specifications

• Temperature range: 68–92°F.
• 25W model aquarium size: approximately 2–6 gallons.
• 25W model length: approximately 4.84 inches (123 mm).
• 50W model aquarium size: approximately 6–10 gallons.
• 50W model length: approximately 5.55 inches (141 mm).
• Diameter: approximately 3/4 inch, measured from the black rubber base.
• Voltage and frequency: 120V/60Hz.
• Available variants: (25W) ULTRA COMPACT and (50W) ULTRA COMPACT.
• The heater is fully submersible and waterproof.
• The temperature control unit is separate from the heater body.

Select the wattage that matches your aquarium volume, then use the external control to maintain a consistent setting for the fish in your small tropical tank.