Ideal for desktop aquariums from 4 to 10 gallons.

Features:

• Fully submersible
• Vertical or horizontal placement using suction cups that mount to the bottom or side wall of tank
• Quick and easy installation
• Shatterproof construction
• Can be used with glass or acrylic enclosures
• Note: Do NOT operate or leave product plugged in when it is outside of water
• Warms aquarium water up to 6°F above ambient room temperature
• 15 watt is best for 4 to 10 gallon fish tanks