Harlequin (Fallponic RDWC)

WEEK 13 - 16/10/2021 - 22/10/2021 17/10/2021 - Complete res change done. 30 gallons of water mixed with the following: Liquid Silicon - 1ml/gal - 30ml Cal-Mag - 2.5ml/gal - 75ml Micro - 3.5ml/gal - 105ml Gro - 1.5ml/gal - 45ml Bloom - 5ml/gal - 150ml Hydroguard - 2ml/gal - 60ml pH - 6.14 EC - 1.14 mS/cm T - 24.3 Since removing plant 4,i now have the freedom to access its container easily. During the res change, I noticed the roots from plant 3 has extended to plants 4's container. I really hope the roots don't block the return line. 20/10/2021 - All 3 plants leaf tips appear droopy. I think it could be due to fluctuations to the pH. Since complete res change, the plants are not drinking as much and pH goes down drastically. I cant really pinpoint whats the cause. After adjusting the ph to 6.0 . The next day it goes down to 5.5 . I might need to do a complete res change in few days. Minor defoliation done.