Aquarium web site Monsterminibow details how to to make a DIY overflow sensor to help you save your fishes and floors from potential disaster. Overflow Prevention | Monsterminibow via Hack a Day ...

Blockages in an aquarium drain or a malfunctioning pump can lead to a floor covered in water. Thankfully, with a simple circuit, the right parts, and some spare time, you can build your own ...