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For a while I’ve been using the white wool filter material in the filters on the media beds. This stuff is really only for small applications like indoor aquariums so keeps clogging up and compressing. That means that the water just runs off of the top of the compressed material and doesn’t filter.
Sooo Im trying this spongy blue material, which is available in sheets and I’m cutting it to size to fit 10 cm (4″) plant pots in which I’ve cut extra holes to improve the outflow.
This stuff is much coarser than the filter wool and hopefully, changing it will reduce the number of times I need to clean the filter material. I can be put in finer filter material after this later if this works.
Wish me luck!