leaf problems w/ pics

two different plants, two different problems?.. One has yellowing lower leaves starting at the tips and edges, the other has partly turned brown and crispy, but it started yellowing all over in more of a splotchy pattern(if you looking off two the left of the leaf you can see this in another leaf)

The plants have been flowing for about 3 weeks or more in foxfarm ocean forest, about 2 gallon contains and i have supplemented with earth juice(2Tbs grow 1 Tbs bloom per gallon) twice over the last 3 weeks using 1 gallon(each of the two times) of the nute mix across 10 plants.


any idea what the problem is?

 

hmm. pics showed up smaller than i though... click the gallery button at the bottom for the full size pic

 

It looks like a phosphorus, but don't trust my words because Im no expert and don't wanna be responsible for fucking your grow up.

http://icmag.com/ic/showthread.php?t=11688