Originally Posted By: liquidsquid
Bender, I think you have suggested the best option here, as something like this is self-sustaining apart from the smallish water pump to keep things circulating. Those bog plants can remove a LOT of nutrients. The bigger the bog, the better the filter. The drawback is water loss through all of the vegetation, plus bugs if fish cant get in there to keep it cleaned out.


If I remember right, the bog sizing is around 10-20% of the pond. To help with the bug problem the peastone can be filled above the bog water level, so there is no exposed water. Some people plant these bogs like they would their gardens. Bog plants are best for removing nutrients, but there is something about the filter providing more than filtration that appeals to me.