Need help diagnosing!!

Hey guys so I'm having a little problem with a few of my plants,
They're growing in FFOF, I'm ONLY using FF Grow big as nutes.

I recently transplanted these from solo cups into 1 gallon pots, until i begin seeing pre flowers to which ill switch all the females into 3 gallon pots and throw away the males.

anyways!

I transplanted them 3 days ago because i was concerned about them getting root bound in the solo cups (the plants are damn near a month old now) and they were displaying slight symptoms of my even bigger problem now.

I have a milwaukee Ph600 meter that i use to check all Ph going in and coming out, but I'm starting to believe that it's not giving me the right reading anymore and that I'm possibly giving my plants the completely wrong Ph levels.


Are my plants in transplant shock? (i was very gentle with them, so I'm finding it hard to believe that's the problem)
Am i experiencing a deficiency? (according to other threads i may have a Molybdenum(sp?), nitrogen, or cal-mag problem)
Does it look like I have a Ph problem?


Thanks for all your help guys, i have about 20 different babies going right now, i just want to make sure they all stay healthy incase these sick ones are ladies

did you get pH calibration solution? always a good thing to keep on hand.

i've got a Milwaukee MW101. it's been very accurate for me. a tech told me the best way to store it is to rinse with white vinegar first and then store in 0 ppm water. haven't had to calibrate in probably 2years now.

hardly ever molybdenum defic. low N or cal/mg would be my guess. maybe some other dirt farmers will chime in.

hey thanks for the quick reply, i did just go out and buy a new sleeve of buffering solution for my meter.. all my water and nutes worked out to be 6.5 like they should be... i also purchased some of that calmag, added 1 teaspoon per gallon to both my nutes and water and the ph didn't change at all... is that normal?

i don't think calmg would affect pH. i usually mix all my stuff together and then ph it.

what ppms are you feeding at? do you know if that soil comes prepared with nutes in them already?

I don't have a ppm meter so i'm not sure... just adding the recommended amount for regular feeding off the Fox Farms grow big bottle. 2.5 tsp per gallon. and now the calmag is 1 tsp per gallon and then i usually only have to add 1 tsp of ph down for 4 gallons to get it to 6.5

the ocean forest soil comes with some nutes in it already but i flushed the soil heavily before transplanting them and they already were showing these signs before i transplanted them so i don't think the soil nutes are burning the plant either.

I suppose ill just wait and see how this feeding with calmag goes and if it gets better ill let you know!