about to build a massive sump for my 7x3x2 and was pondering doing 100 litres of k1 in a moving bed in the middle chamber with 100l per minute air pump, with around 15-20kgs of alfagrog on the other chambers, as the pump will be very exspensive and so will the k1 ive just been offered a sump stocked full of lots of alfagrog i mean the whole sump pretty much filled with it which should i go with? im building a sump as want more space and volume for media and getting lots of predator fish soon?
many thanks
luke
many thanks
luke