5 is too low for ph in soil. and my experience with foxfarms soil is that its nuclear hot and has a half life of about 6 months. my runoff is at 6.5 and usually is especially new soil. the ppm tho is well over 2k and stays high. the plants i have now were started in it from germination. i still dont need to add much more than a little calmag and now that theyre flowering ive added a tiny bit of big bloom and tiger bloom maybe at a 10-20% of the suggested ratio. the runoff is still above 2k so no need to add main ferts.
try flushing them, and only give them water and maybe calmag for a bit to see if it clears up then you can readjust your feeding schedule. id get rid of the drops for ph and get a meter that will also give you ppm.

oh and gold star for the day for having the form filled out!
Mal420xl Reviewed by Mal420xl on . Burned tips, yellowing on plants 291006291005 First post so be gentle. I've filled out the form below. I've had few problems in the past but this time around getting some really strange stuff for me. I have pictures of 2 plants, but from same seeds and treated the same. The one has the burning, the other has a bit of the curling/canoeing but this just started and might be from me adding extra pH in last watering to try and attack plant #1. I have a third plant that looks even worse than #1, so I'm willing to do Rating: 5