Id be careful with the cal mag it has nitrogen I'm using ffof for my first grow as well I used a quarter of what it actually calls for and i ended up with burnt tips but every strain is different good luckGave them a little drink w calmag tonight. Not sure if I'm messing up or not. A few pics of their mid morning my night.
From what I've gathered since I bought my crap light you have a pretty decent light that's actually the light im gonna upgrade too I just started a grow journal your more than welcome to check it out comment suggest etc for my first grow I'll gladly take adviceUsing mars hydro "1000w" QB It's about 20 inches above canopy right now