You can soak aching joints, make laxative, cal/mag help for your plants & many other things with Epsom salts. Dates all the way @ least to the Gladiator days in Rome! Lol
(This) do not use those ferts cause the Epsom will allow what is in the soil to uptake into your girls. Epsom salts are organically efficient for your mag needs & a hell of a lot cheaper!!! Lol
&I the epsoms will allow any nutes In your soil to be absorbed by your girls instead of being locked out by salt from the nutes. It's complicated but after awhile you figuire it out. Hell my grow right now has 5 beautiful girls & 1 with red stems so bad idk if it will be able to finish & I have no idea why! Lol
Too cold when the lights are off or cal/ mag defienciency. No big deal if it's a cold prob. Most people get all anal about this growing shit but it is just a freaking weed. Throw some seeds outside your yard & there will probably be some smoke in the fall unless you are that unlucky. Lol
Like I said given some epsoms & you will see those reds start to go away. But you will have to figuire out what else they need. It's always a game just like the girls! Lol