Utilising technology from the waste water treatment industy, the Oase PondPad - 20l has an unrivaled protected surface area for bacteria to colonise. The Oase PondPad will handle more food per m3 due to it's almost porous nature. It is designed for use in a moving bed bio chamber, and will be self cleaning when used correctly.
Seneye is perfect for busy people, those that have limited time around their ponds and would fail to spot problems occurring. It's a great tool for winter, when you're less likely to spend time by the pond and when most issues occur. And for those with heavily stocked ponds running on a knife edge, the early warnings would be invaluable.