It's no secret that ammonia is one of the major contributing factors to fish disease and death, so it's little wonder that many ponds have filters to help maintain the clarity of the water and remove ammonia.
Early filtration systems (such as sand filters and
pea gravel) were essentially based around the removal
of solids - filtering the water but not treating it
in any way. Modern filter media now focuses much more
on the biological treatment capacity, which is where
BioBeadM and BiobeadB media come into
their own.
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