Northern Light - 2x600w Lumatek Zeus Pro

Day 15 ------ Temp : 24-26C RH : 70 Light : 50% @ 60cm for 18h Water : 400ml of nutrient mix twice a day EC : 0.7 Video update : https://www.youtube.com/watch?v=2Vyj7vIMEW0 Today we start week 3 of our grow. We are at day 15, and not really much to report. We will do our 2 feedings today at 400ml each pot, with the nutrient solution written down below. After we make the solution, we will dilute it using RO water to the ec we want it to be. Usually the mix I make comes down to 1.1EC so I use a few Liters of RO water to get it at 0.7ec. Just after lights off, I will do another foliar spray of the calmag, to help the plant get on her way. Nutrient solution Sensi Cal-Mag Extra : 1ml/L Sensi Coco Grow A : 1ml/L Sensi Coco Grow B : 1ml/L B-52 : 1ml/L Voodoo Juice : 1ml/L Piranha : 1ml/L Nirvana : 1ml/L Bud Candy : 1ml/L Foliar spray Sensi Cal-mag Extra : 2ml/L Day 16 ------ Temp : 24-26C RH : 70 Light : 50% @ 60cm for 18h Water : 400ml of nutrient mix twice a day EC : 0.8 Video update : https://www.youtube.com/watch?v=5Ce2KaXZb2A Today nothing special, the only thing today is that we added RHINO SKIN (some sort of silica) to our mixture. We are still doing it at 400ml twice a day. We are also still doing the Foliar spray at night hoping to fix the calmag issue. Nutrient solution Sensi Cal-Mag Extra : 1ml/L Sensi Coco Grow A : 1,5ml/L Sensi Coco Grow B : 1,5ml/L B-52 : 1ml/L Voodoo Juice : 1ml/L Piranha : 1ml/L Nirvana : 1ml/L Bud Candy : 1ml/L Rhino Skin : 0.125ml/L Foliar spray Sensi Cal-mag Extra : 2ml/L Day 17 ------ Temp : 24-26C RH : 60-70% Light : 50% @ 60cm for 18h Water : 400ml of nutrient mix twice a day EC : 0.9 Video update : https://www.youtube.com/watch?v=uJfGTRB_oek Today we are trying to fix our Iron deficiency, the only way for me to solve this is add more Calmag & more base nute part A since those are the 2 that contain iron. I adapted my solution a little bit down below. Other than that, the rhino skin is really thickening the stems, so I like that :) Nutrient solution Sensi Cal-Mag Extra : 1,5ml/L Sensi Coco Grow A : 1,5ml/L Sensi Coco Grow B : 1,5ml/L B-52 : 0.5ml/L Voodoo Juice : 1,5ml/L Piranha : 0.5ml/L Nirvana : 0.5ml/L Bud Candy : 0.5ml/L Rhino Skin : 0.5ml/L Day 18 ------ Temp : 24-26C RH : 60-70% Light : 50% @ 60cm for 18h Water : 400ml of nutrient mix twice a day EC : 0.9 Video update : https://www.youtube.com/watch?v=8Fc-WZPFiDM Today we did our first LST (Low Stress Training) on the girls. I feel they are old enough to start getting this training as they all developed a 3rd node. I also upped the nutrient solution to 0.9EC at morning and 1.0EC in the evening. Nutrient solution Sensi Cal-Mag Extra : 1,5ml/L Sensi Coco Grow A : 1,5ml/L Sensi Coco Grow B : 1,5ml/L B-52 : 0.5ml/L Voodoo Juice : 1,5ml/L Piranha : 0.5ml/L Nirvana : 0.5ml/L Bud Candy : 0.5ml/L Rhino Skin : 0.5ml/L Day 19 ------ Temp : 24-26C RH : 60-70% Light : 50% @ 60cm for 18h Water : 400ml of nutrient mix twice a day EC : 1.0 Video update : https://www.youtube.com/watch?v=po9-uA_3MKE Wow! They grew ALOT since yesterday, the nutes and LST are really doing their job, and I can see them grew in front of my eyes. Amazing! We upped the feeding to 1.0EC while dropping the calmag a little, since we want her to get other nutes aswell at a higher rate, since calmag has the tendency to raise EC alot. Nutrient solution Sensi Cal-Mag Extra : 0.5ml/L Sensi Coco Grow A : 1,5ml/L Sensi Coco Grow B : 1,5ml/L B-52 : 1.5ml/L Voodoo Juice : 2.0ml/L Piranha : 1ml/L Nirvana : 1.5ml/L Bud Candy : 1ml/L Rhino Skin : 0.75ml/L Day 20 ------ Temp : 24-26C RH : 60-70% Light : 50% @ 60cm for 18h Water : 400ml of nutrient mix twice a day EC : 1.1 Video update : https://www.youtube.com/watch?v=r305J3oZjeM They are growing strong every day, every day I have to redo the tie-downs since they are growing out of them. Today I measured ph & ec of some of the pots run-off, and they seemed high (6.3 to 6.5) and all having an EC lower than 0.9 so they are feeding well, but the pH is problematic. But after talking to some expert growers, they suggested that Runoff PH is not a problem, since PH is managed by the roots themselfs. As long as EC is lower or equal, we are on the right track :) I flushed 1 girl which is suffering from a Nitrogen Toxicity, only giving her plain ph'd water tonight, hoping to see something better tomorrow. Im also gonna leave out the Rhino Skin/Cal Mag/B52 in tonights feed. Nutrient solution Sensi Coco Grow A : 2ml/L Sensi Coco Grow B : 2ml/L Voodoo Juice : 2.0ml/L Piranha : 1ml/L Nirvana : 1ml/L Bud Candy : 0.5ml/L Day 21 ------ Temp : 24-26C RH : 60-70% Light : 50% @ 60cm for 18h Water : 300ml of nutrient mix twice a day EC : 1.1 Video update : https://www.youtube.com/watch?v=errW9AGf_bw Today I tied some of the plants down again since they pulled loose their straps. I gave them another feeding except for the N-Tox plant which I gave a feeding of 0.7EC. I buffered every watering little lower to 5.7ph. Nutrient solution Sensi Coco Grow A : 2ml/L Sensi Coco Grow B : 2ml/L Voodoo Juice : 2.0ml/L Piranha : 1ml/L Nirvana : 2ml/L B-52 : 2ml/L