When you post "Ca/Mg for sure", then you say same as your plant, for which btw you have a thread going and asking what the issue is, yet now you say it is cal mag and so is this lol..then suggest and overwatering? Yes, that is clueless and baseless! lol...You have no idea what he is feeding, when and how much he is watering, you immediately assume it is 'for sure' cal AND mag issue, same as yours, still not sure why you have a thread going asking what the issue is with yours when you know for sure lol. Then, sadly, op believes you and is now about to dump something on his plants when there is no issue with cal mag at all..so ya, that's hurting someone else who doesn't yet know not to jump on the first clueless reply he/she gets, and they are about to follow your lost advice! If you actually think that that tiny bit of yellowing or dead leaf that is hidden from light, is ph related, yet all other leaves that get light are green and fine, hmmm, ph? really? Ppm issue? again, a pinch of yellowing on a shaded leaf and you think what? maybe overfeed or no, cal mag for sure! lol..yet again, all other leaves and shoots are just fine? Get a clue dude! Poor guy might ruin his plants listening to your lost suggestion, which hopefully he didnt do!