• Nimrod@lemm.ee
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      4 months ago

      Agreed 100%

      Also called “wetland upflow filtration”

      You can build one for pretty cheap on a pond of this size. Just make sure you have an easy way to access the manifold for cleaning. I’ll bet with a pond this size you could make a bog filter with just a single 55gal drum. Head to gardenpondforum.com and start searching/reading.

      I have a 2000 gal pond using a fairly massive bog as the only filtration, and my water stays crystal clear all year. And I’ve got a pile of fish in there, as well as 5 ducks that love using it as a toilet. Bog filters are the only way.