White spots normal trichomes.brown spot ph problem if you had it go up and down a lot.or some nute deficency.what nutes are you using
After reading you are using ro water and using 1/4 cal mag soo best bet is plant needs more of it.especially if you are using led lights magnesium goes fast.it will start in lower leafs and make them brown and crumbly
Yes, Im using LED lighting. The ph has been stable throughout the grow and sits at 5.9-6. Im using gh nutes at 400ppm + the calmagic. I've been stressed that I'm not using enough calmagic but longtime growers here, who know I'm using ro, have told me not to go any higher that 120-140ppm with it. I've been on the fence about whether to just say eff it and up the calmagic. I've sifted thru a few different forums and most say to use 5ml/g with ro, which is a full dose. The least I saw was someone using 3ml/g. Honestly, I'm at the point where I would rather experiment with upping the calmag. If it helps then I know what ratio to use in future grows. If it fry's the plants, atleast I will know what ratio not to use in the future. Worst case I lose the plants and can start fresh, running sterile from day one (or bennies), beginning nutes day 1, and exercising the other lessons I've learned thru my mistakes this grow. I picked up some ocean forest, happy frog and perlite for my smaller tent as I have a longtime buddy who's been growing for years and will mentor me. I figure having that grow as a backup plan is better than putting all my eggs in one basket. I originally planned to do soil in that tent anyway, because i can't justify the cost to build another rdwc and purchase a chiller, and dont have the ability to power air pumps in both tents and the pumps for my reef tank in the event of an extended power outage.
