Gorilla Cookies: First Auto, First RDWC and Hydro.

Still some issues. Can't really seem to figure out what's wrong with these ladies, besides my cubes might have been too wet, and then killed em off somehow. I did transfer to the tanks a bit late, because i was waiting for a RO system to arrive. My water is incredibly hard, and in testing the hydro-system with tap-water, i had to use around 8ml/L of PH down of TA PH- to neutralize the alkalinity and keep the solution stable.. That in return caused slimy water because of the citric acids mingling with the magnesium and calcium. In the system now, I'm running 4 parts RO water, and 1 part tap water, and got PH- use down to 1.5 - 2 ml/L. I'm plan to switch to a full RO water when i change water in a week or two. This will hopefully have me using even less PH-down than i am now. Roots are down all right in the tanks, though only a single long-john going from every one of them. I've got new seeds on the way in the mail - hopefully the ladies can recover their stress. EDIT: I think the usual suspects were to blame, as someone would confirm for me in the question-section. Substrait too wet - i don't think lights are to blame, since I have them measured out at around 215 PPFD. The cubes were placed too close to the bottom of the net pot. This has caused too much water to hit the cubes from below, caused by air-bubbles bursting - i run around 15L/min air into every bucket. Two plants to the right didn't have any bottom-cover of pebbles to protect from direct water splashing. I've gently been blowing air into the Rockwool cubes with an air-compressor trying to remove excess water in the cubes. I also moved the cubes up higher in the net-pots, making sure clay-pebbles covers adequately at the bottom parts of all the net pots. Seems to have done some sort of trick. Now, giving it a few days, not throwing anything out just yet.