Plants Yellowing/Brown Spots on bottom leaves

Yeah the Ph is a little high, is there anyway I can lower it a bit with any household items?

I haven't misted with plain water just the schultz at 57% so far. I haven't added any schultz to the soil so I will do that next watering.

Got a few more pics, I'm wondering when the best time to transplant would be. I took a picture of the rootball on one of the plants, and it's not my biggest plant so it might be time to trans.

Thanks for you help, yall rock :)

baking soda will lower PH. and vinegar will raise ph. only a litter though, about the size of your pinky nail.