If you've been annoyed enough about suction cups and their pitfalls, you'll grab it here.
A self-made heater holder for aquariums for a pane thickness of 5 mm, simply insert the heater and hook it to the pane. No more wet hands when taking out and cleaning, no more hassle with loosening suction cups!
The holder fits the usual, round heaters up to 150 watts and a diameter of up to 25mm
