Nute lockout?

so it looks like i have a nute lockout issue here. the first 2 pics are of the same plant. it is a buckeye purple which is very heavy indica i guess. i had been watering/nuting/etc it the same as the monster plant (more of a hybrid) in the third pic. the breeder is telling me i should lower my ph. i appreciate her help but i can find very few threads where anyone recommends a ph of 5.8-6.2 for watering in soil because it is so pure an indica. i think my soil is pretty acidic as it is. i only have ph paper right now but the nute solution has been around 6.2. the runoff now is about 6.0. so i am thinking i need to get it back up in the mid 6 range. thanks in advance for any input...

Not nutes lock up to me. I've seen this many times. From my growes and other's. Looks like it needs a bost in nutes. All npk . up it some. PH looks good. My pH stays at 7.1

PH of 6.5 would probably work better. What is your ppm? Looks like you need some nitrogen in there, to get some more green going. Some strains like more than others. Are you adding calmag? How old are they? What line of nutes are you using?

thanks for your replies, warble and cali. i have not measured my ppm. i have an eds meter but stopped using it and didn't have any issues until now. i thought that nute lockout would make the plants look pale since they can't take up anything. i do use calmg. at first i thought that was my problem so i hit them with the manufacturers recommended dose of calmg. they are just getting worse. the plants are 6 weeks from sowing the seeds. i have 2 super buckeyes like the one in the last picture. they are beasts. the nutes i am using are general organics gobox. they have worked well enough for me in the past and the super buckeyes seem to like them. just wondering it there is something to a pure indica that maybe they like more acidic soil??? i have probably screwed the pooch as i am really good at making really bad decisions. i went and gave the sickly plant a light foiliar feeding...

indicas are not known to like more acidic soils, but are known to be more heavy feeders (most of the time). How did this ever turn out?