The AquaEl 25W Ultra Aquarium Heater is appropriate for aquariums from 3 to 7 gallons. They are the only heaters on the market with solid state thermostats. This means they have no moving parts that can break and cause a calamitous aquarium failure due to the heater not turning off.

The thermostat operates with an exceptional precision ( /- 0.25° C) to maintain a constant temperature in the tank. The other heaters on the market have normal temperature swings of a couple degrees. The constant temperature ensures that even the most sensitive of aquarium animals will stay comfortable at all times.

Features:

• 25 Watts
• 6.42 inches long
• For tanks from 3 to 7 gallons
• Suitable for fresh and saltwater use
• Suction cups included
• Temperature range 68 to 94 F. Solid state thermostat.
• Near constant temperature
• Virtually unbreakable
• Built-in overheat protection
• Also displays the current water temperature