Aqua Medic Electrode Holder for 4 electrodes
Aqua Medic Electrode Holder for 4 electrodes are easy to use. Available from Swell UK.
The Aqua Medic Electrode holder can hold up to four electrodes, and can be attached to the vertical or horizontal glass strips inside the aquarium, or mounted directly to the aquarium glass.
With it being made from strong plastic it can give you that extra reassurance that your electrodes are in a safe and secure position.