current ph run off: 6.5-6.8 lighting: 1000w hortilux mh air cooled water: tap water with ph down medium: soil nutrience: SVA/SVB i have been growing for a few years and i have never had this problem before. from a clone to about 3 weeks old all my plants look healthy but then about 3 weeks the leaves start to look sick, light colored almost lime colored. Then about 4 weeks they new growth starts to look brown and then stunts. i just switched about 3 days ago from using all T5 lighting system to the above lighting to see if this will help. I also started adding a small amount of cal/mag to see if this will make a difference. does anyone know what i am doing wrong or if the changes i made will help? thanks in advance.
I'd be taking the ph of the soil from several areas and the run off and adjust the water accordingly also I would spray cal mag for a foilar test add 1/2 teaspoon of calmag to a pint spray bottle and shake and spray wait 60 mins and judge for your self good luck