My grow journal thread is a bit dead so I'm posting over here. Strain is Liberty Haze, grown in FF Ocean Forest & perlite. Only received spring water up until late veg, week 9 veg I believe. In week 9 she got one treatment of 1/4-strength Grow Big and Big Bloom and a week later some cal-mag. Spring water again ever since. I see signs of nute burn but also possibly magnesium deficiency(?) She's been in 12/12 mode for five days now. What's wrong and how should I treat?