Originally Posted by kest30
High all . . .
In complete agreement, Magnesium deficiency will start to show as faint pinking of leaf stems, then move on to reddening, moving onto main stem, then chlorosis of upper leaves, you will also notice that your bud's aroma will have changed to a chemical / tary like smell! (Though pinking can also be deficiency in N, P or K too
, but I've found that Mag is usually the culprit for me as my water is so soft.)
It is worth noting though, that cooler temps during night times can bring on 'pinking', or a large change in daytime and nighttime temps. So it might not be Mag, if pinking advances and temp. remain constant, defo Mag; some strains will exhibit a turning up of leaf ends and fringes, when hungry for Mag too . . . . .
Just m 50p worth
Peace . . .