This is a gelato cookie kush auto flower 1 week into veg from early veg
Growing in organic super soil and only watering with R.O. water nothing else
This is started a couple days can’t figure out what the problem is. Feed back would be appreciated thank you grow community
Light is 22 inches away it’s a vipaspector 1500x at 75% power
Maybe some kind of deficiency??
      
    

  I hear you on not wanting to use the bottles though.  I also grow in a living soil -ish system with organic amendments, no bottles (other than the cal mag). Oyster shells, and crab meal are some good sources of calcium but it’s not a quick fix, it has to be broken down.
 Horse Pee? LMAO!! Always used Lemon Juice. Two drops a gallon, if I’m using Distilled Water. Two drops brings 7.2 water down to 6.4 … What vitamins and minerals are in lemon juice??

