Please help ASAP

Guy and Mary Janes I don’t know what this is please help

Please post pics under natural light not blurple. Also we need a lot more info. Light, soil, stage of growth and age, fert schedule used, temps, Rh...etc. If I had to take a wild guess I’d say it’s pH related. Also it Looks like your fertilizer mix is too strong. Burnt tips.

Thanks I corrected the mix that caused the burnt tips.