DEF? One leaf dying at a time

PH ? meter seems busted stays at 7.0 last norm check was 6.7
nutes 10-60-10 1/4 strenght
12/12 hrs week 3 since lights changed
soil is ff ocean forrest mixed with 10-15% perlite
strain master kush seed

all looks normal only very bottom leaves been dying off slowly now its only one

Doesn't look too bad. Might just be a result of the distance to the CFL bulbs.

bump anyone else know i think it was the ph i fixed the meter and it read pretty high 7.7 so i added lemon juice to a gal of water now its at 6.5 anyone should i go back to feeding now or just add plain water for a while
leaves keep slowly dying from bottom up

anyone else it seems to be getting worse

...looks like their in small pots, might want to transplant. When was your last fertilizing?

the pots are two to three gallons on the first of this month i transplanted it into this pots thats when they got new soil
feed every week maybe twice she's been drinking fast