Sweet Gelato Auto x4 IN LED MyPot

30/01/22 I changed nutrients! I emptied and cleaned the bottom tank. I emptied the top deposit (4L) as much as could, there is no valve, so I flushed the grow medium in the bathroom to diluate at maximum. Finally, I prepared the new nutrients soup and fill the bottom deposit (12L) and changed the stone for the air pump (much more bubbles). After 36h of watering the level of the bottom deposit was lower as the top deposit has been filled again (4L) I added 3L of water. EC is now at 0.75 and I got the pH controlled daily, It's quite annoying as I can test only the bottom deposit and when I set the new pH I have to keep in mind that the top bottom will act as a buffer. Meaning, the pH tend to move up to 6.3 so I set the bottom to 5.5 so it mixed progressively with the top and I think I got during the day a range between 5.7 to 6.2. Also, I saw green alga on the top of the rock wool cube and around the top holes where the watering filters to the grow medium. I mixed 10ml/L of oxygenated water and I put 10ml on top of the cube and clean the holes. I'm still watering manually around the wool cube 15 to 20 ml by plant (2 to 3 times a day) as I think the root must not be enough long to arrive to the top deposit or be watered properly regarding the position of the holes on the top platform. I also applied leaves spary 2 times a day with Supervit and Rhizotinc. 06/02/22 Thank you so much for your answers to my second question! Decision: I'll follow on with this 4 autos. Challenge, experience and I'm not keen to forgive. Confirmed they grow again but still leaves are small... I saw they should be as hand palms. New leaves are healthy (no brown zones) in comparison with the damaged first "leaves". I will stay with the same Ec 0.85 for 3 to 4 days bottom deposit drop for about 2 liters. pH is now almost stable in 24h it goes up to 6.1 max, I perform a light adjustment to 5.7 in the bottom deposit. Hopefully, the SuperVit, PowerZyme, RHIZOTONIC would have helped to help the plant to produce new healthy roots that will develop and reach the 4L deposit of the top module. I uploaded pictures of my "spaceship" setup: - so you can the not well know Spanish DWC Mypot https://www.ledgrowshop.eu/mypot/ - in a 60x60x160cms tent and, - the SOLUX PRO TITAN 4 https://opengrow.pt/shop/en/led-equipment/348-solux-led-titan-4-120w. That's why this time my wife and decided to grow Autos the fear of lack of space. I used to grow 15 years ago, and at first I tried soil without so many success, and a friend offers me to try the GHE Aqua Farm and I was amazed by the results. But at this time I had a 120x120x200 tent, 800W HPS (cool tube) and powerful intraction/extraction directly from outside fresh air! I struggled a bit until I discovered my house water is pH7 and EC 0,05!!! Everything was perfect after I used CAL MAX and other nutrients on top of this base. I'm a newbie with this new setup, and as said I haven't yet get the perfect balance, will be patient. I have to accept losses during this R&D phase of the launch. A doubt for the led system though but but happy with the change of nutrients, back to the liquid one used to use in the past.