Purple Hulk / SF2000

so this ladies are basking under the SF2000 by spider farmer. I am doing feeds with Mammoth P every watering / continue with NFTG nutrient feed. I have a humidifier but its set up in my veg tent with seedlings so im choosing too spray with distilled water at this point at lights off with magnesium (epsom salt) since the LEDs are very strong im taking precautions and supplementing the magnesium so deficiencies don't occur. The leaves look really healthy to me with only a few of the oldest leaves yellowing. Day 43- The tent is sitting at 38RH% and 78ish F. The New England weather is so indecisive and its make me loose my mind but luckily my tents have stayed dialed in a are painting steady consilient temps. Growth looks pretty consistent and no slowing down. MSNL really has some great genetics. I did a minor defoliation of small bud sites and lower leaves. Did not notice any shock or slowing down. Day 45-Steady growth. Had a fan on these ladies but they didn't seem to like the extra air so I took it off. 38RH% 75F steady in the tent -NFTG feed W/Mammoth P 6.6 ph Day 47- NFTG feed W/Mammoth P 6.5 ph Day 48- She is very thirsty! i'm feeding .40-50 gallons a day at this point. im noticing a little lock up so I might hit her with the Fox Farms SledgeHammer tomorrow on day 49 or day 50 depending on how thirsty she looks !