http://glassbox-design.com/2010/robosnail-fish-tank-cleaner/ "As was discussed in the comments of the first post, the RoboSnail cannot turn corners . This means you’ll either need one unit for each pane of glass, or, you may just have go clean the sides yourself. Inwall display tanks this may not be much of an issue. AGI does say they are still looking into this feature." Dom kanske löser det problemet inom en snar framtid oxå