Looking good.

Can you describe what you think are pH problems?

One thing I always do (growing in pots with soilless mix) about 4 weeks into flower is to really flush my plants assuming there will be some salts built up. To flush, I use pH'd water (around 6.0) and make sure I get at least a 1/2 gallon run through on each plant (#5/#7 containers), which I discard. You should take your time in the process too. Give the water time to really saturate the medium. After flushing, I let them dry out for a couple of days.. next feeding is about 2/3 of normal (I stay on the weak side) and only basic flowing nutrients. If I've been having problems, I may flush them one more time the next week, but usually resume any flowering additives.

This method is also my first go to if I'm having any sort of nutrient based plant issues.

Hope this helps.

Peace,

Farmer Rich