GC, GG4, Notorious THC, PineappleMuff

Temps warming up here. Plants getting a little burnt as they stretch. Seem to be mellowing out. Still feeding tap water. Also had some leftover easy weed so gave them a little dose of that which probably contributed to burn. GC big praying. Added last photo, pmuff discoloration a bit concerning. Doesn't necessarily look like N-def and is affecting the whole plant. Possible Mg-def looking at other pictures? I did add a rather strong feeding (2tsp/gal) of my CaMg+ just to the pmuff. Little N boost, and some calmag. So if it is indeed Mg-def then hopefully it should perk back up. That's a wrap on week 8!