Eheim Thermocontrol e300 Heater Best results are obtained when

Best results are obtained when both are used

the faster you hear about an unexpected issue the more successful you will be as an aquarist

Performance is guaranteed when sized

up to macroscopic sizes

Eheim Thermocontrol e300 Heater Best results are obtained whenWith the EHEIM thermocontrol e heating element your fish get the right temperature even more precisely in every aquarium. The EHEIM thermocontrol aquarium control heater is a further development of the legendary heating element and thermocontrol e is the latest electronically controlled variant. 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