I found where I could find the purina gamefish chow and the aquamax 600 in my area, I was wondering how much it would cost per bag? Also how should I mix the two? Would a 4:1 mixture like Theo uses be good for my pond pfc:aqu600? My pond is 1/2 acre stocked with bc,bg,perch,lmb.The pond is 16' deep and aereated 24-7. Any advise would be apreciated.