Glookies first grow hydro RDWC

week 2 day 3. maybe 200 ppm is a bit too much im actualy seeing tip burn on 2 of them i might remove 50 % water and add reverse osmosis water tomorow to lower nute concentration to around 100 will see how night goes.did the 50% water change and readjusted ph now everything looks fine. also iv lowered water level to 1 inch above bottom of net pot to promote more root growth i need to buy a par meter asap im scared to lower my veg led lower.some little issue with minor tip burn maybe from stress from power outtage or potassium deficiency from nutrient lock out ph went to 6.7 for a day cant get it stable so far.seems like ph as finaly settle down go check my video from grow room.2 of them are doing really well but 2 are in bad shape newbie mistake my ph pen was way out of range went to 4.8 for 2 days i calibrated it 2 days ago flushed system and ran revive only for 2 days ph has been spot on at 5.8 since flushed again yesterday and started adding nutrient back in very low dose 1/4 strenght plants now seems to thrive as roots entered the system today they already are like 6 inch long light just shut off i might do another foliar spary with revive and sensi cal mag extra and wet betty to help with damaged leafs from bad ph pen mistake next week if they have not fully recovered already in case 1 of them does not make it i have a spare 1 growing in coco whos ready to drop in system im still learning feel free to leave comments