MG is not really the best choice for pot plants. Next year try some Fox Farms or soil geared for pot plants. I recommend Fox Farm line for new growers. Most large nurseries will have it and most all grow shops.
I feel you, i started off with some Mg from good 'ole HD.
Then i got learned and hit up my local 'Ponics store, search your local area and get connected cuz.
I feel you, i started off with some Mg from good 'ole HD.
Then i got learned and hit up my local 'Ponics store, search your local area and get connected cuz.
Curled leaves (probably due to overwatering ), rust coloured necrotic spots (I would guess lacking phosphorus), yellowing between the margins (possible Mag issue). If he is potentially lacking both P and Mg and has curled tips I assumed lockout due to excessive N (however pH could be the culprit). Being he is in soil I guessed pH problem was less likely.
I will not claim to be correct but I feel given the information tabled it was a logical guess.