A compact temperature controlled heating rod designed for aquariums and terrariums. Safe, reliable warmth with a small footprint. - Safe and durable: temperature resistant ABS shell protects fish and turtles from burns and reduces injury risk if tank mates collide with the heater. - Clear status indicators: red light shows active heating, blue light indicate standby and insulation status. - Fixed 25 C setpoint: mini heating rod uses a nickel chromium heating wire for precise, fast heat up and energy efficient performance. Suitable for freshwater and saltwater tanks. Durable, corrosion resistant construction. 3C certified. - Automatic safety: built in thermostatic core stops heating when the set temperature is reached to prevent overheating. - Space saving design: delicate, unobtrusive, does not take up tank space; easy to install in small tanks. - What you get and compatibility: compact heater rod ideal for nano and small tanks, works with both freshwater and saltwater environments, compatible with standard mounting methods. Use scenarios - Small freshwater aquariums or turtle enclosures needing steady warmth without bulky heaters. - Saltwater nano tanks where space is limited and reliable, single point heating is desired. - Quarantine or breeding tanks that require constant temperature control for sensitive species.