There is no one who finds decorative a heater in the aquarium. The heater has the elegance of a stove tube and the current intensity of 230 volts.
The alternative is as easy as logical:: the heater must disappear from the aquarium! With two new external heaters ( JBL PROTEMP e300 (watt) and JBL PROTEMP e500 (watt))) we now have heaters that simply install on the flexible tube of the external filter: cut the pipe, mount the external heater, set the temperature – bargain made.
The heating cables quickly and evenly heat the water that passes.
Now, inside the aquarium, there is a power source less and also the pipe is gone. You can set the temperature in ranges of 0.5 °C up to 35 °C bis.
With a length of only 30,5 cm the two new heaters find place everywhere. Both heaters are attached fittings for hoses of 12/16, 16/22 and 19/25 mm with fixing nuts.