I've seen protein skimmers that have wiper blades to wipe down the inside of the collection cup, now robo snails. I have an idea for those who like that stuff. Get robo-fish and robo-corals. Then you won't need a protein skimmer to have to clean the cup, and since there is no food in the water, algae shouldn't be a major problem but a reef tank needs a clean up crew so keep the robo-snail. Water parameters won't be an issue, but just for appearance get robo-water testers. Ugh seems like these automated gadgets are taking us further and further away from the hands on part of the hobby.