RO Water and I use GH 3 part with rapidstart and floralicious plus.
the ppm is about 473(.5 conversion) and the pH is 5.8.
Do you think it might be a CaMg issue ?
My leaves are getting brown and yellow spots. The sides of the leaves are curling up too. I put epsom salt to see if it was a magnesium def. leaves uncurled a bit but others started to. I don't know if its heat stress or a nutrient problem. I got another fan for my room and I raised the...