Is k1 moving bed filter new in fishkeeping?
I haven't heard of it until recently..
Is it a standalone filter media that doesn't require mechanical filtration?
Not that new. It's been used in koi ponds, and more recently aquariums. It's just another form of plastic media for bio filtration, and still needs a good pre-filter
it is a biological filter i made one for my tank just to add some extra filtration and to try it out.
i have noticed that my water is staying clearer longer
it is cheep and easy