Please help with soil ph

I checked my runoff five days ago and it was 5.2 i run straight water threw the pits until it was 5.9 -6 and the next time i fed i run my ph at 6.9 trying to bring it up a little ....well today i just fed with 6.5 and the runoff was 5.2.....is this normal or ??? What should i do in about 5 1/2 weeks into flower

Plants look real healthy but from looking at other pics it seems like they should be a little farther along maybe 25% or so .....no bugs frosty buds healthy leaves but want to know what my soil ph is and if runoff is the true way to test it besides sending it in which is out of the question ....thanks

I personally don't trust runoff ph. There are so many unknowns in the soil that it is hard to pinpoint what is going on. If the plants look good, then no worries.

As long as you PH what you are putting in properly, you should have few troubles.

I have a little shit 3 way meter and it reads 7 when the soil is dry and 6.5 wet.....maybe i worry to much