Probably being a bit stupid here but whats "RO water"?
Legalizdahurb Reviewed by Legalizdahurb on . epsom salt? for low magnesium I believe I have a magnesium deffiency,the leaves on my plany mostly the fan leaves as well as other new growth have turned almost a yellow!.... I grow with sultz potting soil/mixed with half perlite my PH is around 6.8 I don't believe it's a lack of N simply because I am only one week into flowering and up to this point all the plants were really a nice forest green! which could only mean lots of N now several of the plants have yellow leaves,I should also add I don't believe the fan Rating: 5