VisiTherm Aquarium Heater 300w by Aquarium Systems is a fully submersible automatic heating system for aquariums. It is temperature adjustable from 20C to 34C this can be done in increments of 0.5C to ensure pinpoint control over the heating.

Hard-wearing quartz glass ensures adequate heat transfer via a high-performance heating element. set up with dual calibration in the factory (dry and in water) in order to guarantee considerable accuracy. This is set by a control knob.

Suction cups provided; this also comes with a light to indicate if it’s currently on or off.