seriously you use mg garden ,we do a lot similar but i dont use the mg anymore as was always getting rusty buds but its very intresting that you get results with mg, sucsess seems to vary with mg im one of the ones that has no luck at all with it.
i use john inness stage 2 soil and add 1 inch of perolite on bottom with 2 gallon pots i flower with 1000 watt first time this grow feeding during veg , i give nothing but baby bio added in every water and i flower at 12 inches during flowering i use phostregen added to every water up until last 3 weeks then nothing for a week and then one more dose and then fush on last week and i get 2 oz per plant and my clones go strait into 2 gallon pot but hoping for better with 1000 watt , i would be intrersted knowing how you use the mg and good results mate , tell us more