Hey people, First time grower here growing two Green Crack plants indoors. I have these little brown spots showing up on a few of the leaves. I'm thinking it is a calcium deficiency but would like other opinions before I attempt to treat, on that note how to I fix this?
It'll be easier for people to help if you post pictures in normal light. Hard to diagnose in the purple light...
For me, even though calcium / magnesium may be considered just a supplement it is always included in my watering / feeding regime. Why, because most bottle nutrients don't ever include enough, but more importantly cannabis plants need way more of both of those minerals than what most people think. So, for me, to avoid one of the most common deficiencies that all cannabis growers could face, I take the proactive approach, which means from day 1, my babies get 5ml camg+ per gallon of water or per gallon of water with nutrients, and I keep to that regime until the end of week 5 of flower, which is when I stop adding camg+ to my watering and feeding regime. And really the only time I don't add 5ml from day 1 until the end of week 5 of flower is when I am growing anything that has Afghani Region traits in the strain, (ie; any Kush), then I always use 5ml per gallon until day 21, then I up it to 8-10ml per gallon until the end of week 5 of flower, because all Kushes, and I don't care what kind it is are calcium / magnesium whores, LoL!!!