Eheim ThermoControl Heater Tropic Marin Hanna’s exclusive CAL CheckTM feature

Hanna’s exclusive CAL CheckTM feature provides a stress-free

Membrane flushing helps remove any built-up mineral deposits from your membrane

Pairs Seamlessly with ReefDose 4 Dosing Pump

The small pore structure results in medium performance combined with low dust and price

Eheim ThermoControl Heater Tropic Marin Hanna’s exclusive CAL CheckTM featureWith the EHEIM thermocontrol e heating element your fish get the right temperature even more precisely in every aquarium. The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the meantime the EHEIM controller heater has become an ultra modern thermal device. The temperature can be set precisely and is measured