Brown Spots and Edges..... Potassium problem????

ok just wodnering if my plant has a potassium problem and would flowering nutes cure it or should i use something with high potassium...... i have bat guano but i think that is phosphorus

i am growing in soil all organic.............. fully matured still in veg i want the plant to be healthy before i start cutting clones

ill attach some photos shortly

here are the pics

i chopped the tips off of affected leaves thinking it was asome kind of disease at first

no one can give me any info on my problem???.............

Yellowing bottom leaves is a sign of lack of nitrogen. . Try poking bigger holes in the bottom and putting it on a saucer and give a little N. If anything its a magnesium def thats making those spotty edges. Cal mag should do it

How does the new growth look?

the new growth is nice healthy and green......... doesnt nitrogen deficency affect the new growth as well??? ....... this is only happening to the older bottom leaves...

i bumped the veg nutes up and added some flowering nutes as well to balance the nutes out..... just one day of feedin i gave it of that mixture........... ill try some cal mag out tomorrow

anyone else can help me out.......... i know for a fact there are very experienced fellow growers out there that can help..... and only 1 came to my rescue..... come on help a fellow grower out people