To all the Boffins out there I need serious Help!!!! Equipment: 1x1000 lt IBC F/T 1x250 lt Clarifier 1 x250 Bio Filter 1x500 lt Sump 6 raft  beds total 1800lt  1 x Pump 6000 LTH 1x Air blower total 22  Air Stones --------------------------------------------------- Water KH  432 mg/L (4 x over the the accepted amount being 61 to 120 mg/L) or ppm75 to 150 NH3/4       0 N2            0 N3          …