do i ph biobizz solution

i'm pretty sure there's no need mate your light mix acts as a buffer and will be balanced already, . i use standard potting mix with biobizz nutes...when u bloom throw in canna pk 13/14 for 7 days during the 4th week from harvest, i find the yield is an extra 30 percent with the pk boost, use epsom salts rather than shelling out for the cal mag shit..
i give pk13/14 and epsom salts,seaweed extract for silica and black treacle for carb loading during the last three weeks.
1.2 tent 1000w hps + 300w cfl dual spectrum
normally get 700 g dried buds​