Ok I have experience ive learned alot over 2 years the last 6 months been dialed in growing 100g girls and one 246g girl. I dont get nervous much but after haveing the type of success ive had I know I need to fix fast to get next level results and this girl seems like she might be the best yet. So the problem is yellowing started on lower leaves they went yellow then died fast im thinking a cal mag lock out but if im correct I dont want to add cal mag until I fix the lock out, any ideas if im rite can you see anything different. Fox farm ocean forest, fox farm tri 5 gal bucket 8 weeks old, she was under a scrog net until last week, 600 watt hps. Thank you