Moai

Let’s just call the Moai what it is: a Fish Roomba. The device (which has a surprising amount of love on Kickstarter), quite literally operates the same way an average robo-vacuum would, if that vac was designed for fish, instead of people. It hugs either side of the tank and, at regular intervals, leaves its little Roomba-esque dock to sweep across the glass and rub off any algae/slime/miscellaneous fishy muck. Is it convenient? Sure—I’m a sucker for robo-vacs in general, and can definitely see the utility of something like this for the busy, high-tech aquarium enthusiast. But there’s also something about the idea of a—let me just say this again—Fish Roomba that also strikes me as a sign that science has perhaps gone too far.