1st Grow - NL Fem. + Bubble C Gum Fem.

Hi there mate the ph rise you are seeing is the result of your plants simply taking up water and/or nutients from the soil. if you are worried about to high a ph level you can add a little bit of liquid sulphur to your feed I use dolomite lime and mix it thru my soil pre grow which can help stabilize the ph a bit.

A sufficient amount of Phosphorous and Potassium is required for big buds. You have those both in check. NL can produce big buds nevertheless you have a SCROG net to support those colas as they will develop. You have everything covered for a good harvest. The remaining factors will be temperatures and your light efficiency. Going forward, if you can, start reducing your humidity below 50% and your buds will be white simply covered in trichomes. Leave remaining fan leave and do not defoliate any further. That's the best advice I can give you 👍