First time with LED and autos. Day 61 now. Growing in FFOF and lightwarrior. Watering every 3 days. PH 6.5 to 7. Just water until day 35 and plant looked great. Started megacrop w sweet candy. Tap water. Plant is a little slower than I thought but seems ok for strain. Guessing its a 75-90 day.
Starting around day 55 it turned a much lighter green/yellow. Buds look ok, and quite frosty. But leaves are dying kind of fast off the bottom and growth seems slow. Thought maybe its a buildup of the megacrop and sweet candy in the medium so switched to floranova bloom which I know works well with my tap water and soil. Not a huge improvement.
Im thinking I need to go with just water for now. Also thinking it could be a calmag difficiency. Do autos or LED require more? Didnt seem to be an issue on my outdoor autos but they finished at day 60. I used tap water first 40 days and then switched to 50% r/o, 50% tap. So could be less calmag from tap.
Any other diagnosis or think switching to water only is good for now? I see a lot of pictures of autos that are super yellow when flowering so maybe its partly the ruderalis? Or LED.