The Aquael Ultra Heaters are designed for the aquariums of today. This heater has a power of 75 watts and is suitable for aquariums with 35-75 liters.
The newest Sera aquarium heaters are specifically designed for low aquariums. The 75 Watt version is suitable for aquariums from 50-75 liters.
With the Eheim thermocontrol-e heating element your fish get the right temperature even more precisely - in every aquarium. For aquariums from 60-100 liter.
The Aquael Comfort Zone Fix are designed for maintaining aquarium water at a constant temperature of 25 degrees Celcius in the Aquarium. For aquariums of 50-75liters.