GDP AUTO / SF2000

so these 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 great on these ladies but its still so crazy to me these are the same genetics. They are exact opposites of each other imo I prefer the large wise open structure pheno because it easier to maintain and I don't need to defoliate / stress the plant. Day 45-NFTG feed W/Mammoth P 6.5 ph Day 47- NFTG feed W/Mammoth P 6.5 ph Day 48-They are 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 ! it makes sense that its getting a little water locked because I fed with the NFTG twice and it tends to gunk things up more in general.