What’s up with my Plant

What nutrient can I use CAL MAG? Whats NPK & MICROS? @Organoman Also the soil I'm using is from BuildaSoil - BuildASoil Potting Soil Version 3.0 Its supposed to be hot soil/cooked soil.

Seaweed extract/tonic is not a N/P/K type of fertilizer, (unless it is mixed with other ingredients) and on its own, is not a fertilizer, but a health stimulant. Your plant needs a complete fertilizer with nitrogen, phosphorous, potassium and trace elements to grow properly. To me, your plants do not look burnt, but hungry. Judging by the droopy limp leaves, they also seem to be lacking from a lack of air movement. The air movement helps the plant get rid of wastes and without enough of a breeze, the leaf pores/stomata get clogged, leading to the droopy look. Hope this helps, Organoman.

You have a general nutrient deficiency overall when the main stem is dark and red/purple like that.. if it were just the leaf stems that’s phosphorus deficiency.. but it appears to be throughout the whole plant (the one that’s not flowering). Hit that with an all around dose of N,P,K and micros. Not sure about the one that’s flowering but it looks like it’s got plenty of N judging by the leaf color.

Ok—- so I’m a little confused. 2 different plants . Autos? One auto one photo? What is the ph? Run off? Check this out—- you have a few deficiencies running. What kind of soil is that? https://www.dinafem.org/en/blog/nutrient-deficiencies-excesses-cannabis-growing/