cal mag

Hey AFN Family, I haven't made a post since 2013 I think. So it's good to be back! Here's the situation, I haven't grown indoors in ages and decided to start again. When the autos hit flower they start to get rust spots on the leaves that slowly crawl from the bottom up. I've spent hours...

This is my first grow, and I have run into a bit of dilemma as I believe my plants are having multiple issues at once, making it hard for me to judge what it is. I'm not going to post my suspicions yet so not to influence anyone's diagnose. A brief history: I suspected a calcium/magnesium...

Hi guys, This is my first grow; I've made lots of rookie errors along the way but have managed to make to Week 8 relatively unscathed until now. I've got two 12L pots growing outdoors. First one an "Alpujarrena" seems remarkably robust, with no real issues to date. The second, BCN Critical...

Hey guys! Happy to finally join AFN and get in on the action. My first grow was hand watered FFOF+Promix soil in 5 gal fabric pots, 4 plants, CKS White Widow photoperiod, 500g-ish dry. Great experience. This is my second attempt, switched to autopots because I was tired of hand watering and...

Hi all, first grow here. My tap water is pretty soft, it's testing at 60 ppm TDS, is this so soft I need to add CalMag when growing in soil? Or should there be enough C/M in 60ppm water? Thanks!

Hey everyone, This is my first post here despite plenty of lurking (and my first time grow). I am about three weeks from seed (ungerminated seed tossed into a rapid rooter placed in final container on May 3). The final containers were 5 gallon root pouches (like a smart pot) with 30% Coco...