The original idea is already tested. 5 pcs of one cubic meters filters with air and kaldnes filter media in a daisy chain. The first tank will be full of bacteria first. If there still any NH3/NH4 or NO2 in the water when it reach next tank will that be populated too and the same with next, and next, and next and. ........
Sincerely Lasse
Sincerely Lasse
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