thats what im thinking but wanna see the plantCould be Mg too
Here's a link, maybe it'll help
http://www.greenmanspage.com/guides/plant_abuse.html
then ur plants r hungrylooks like the normal yellowing that comes with a flowering plant. Mostly in old fan leaves, it makes sense. If you're concerned, let her have a bit of N.
yeah need some more infoYea probably a combo
Are you running any cal/mag or just P and K with that Lucas formula?
You'd think only running Lucas WOULDN'T give you P and K deficiencies since that's all the plant is getting....
Any idea what your PPM's are at?