That would be the ph of your soil id imagine
Waters ph will rise if left, and shud do the same in the pot, so for you to have 6ph in the run off then it would point to your soil ph being very low
best to feed at 7 to hopefully raise it, you shud be between 6.5-7ph for soil growing
if you feed at 7.5 next the run off shud be 6.5
but looking at your plants i wouldnt do that
id keep doing things as your doing for now
anymore yellowing tho and id try n fix it
u will find the bottom leaves die thru out flowering usually from about week 4 from lack of light
as i said tho id defo reccommend trimming the bottom leaves, the bud they will produce will be airy n also itll take away from your main buds due to the plant using energy to grow those small buds
Waters ph will rise if left, and shud do the same in the pot, so for you to have 6ph in the run off then it would point to your soil ph being very low
best to feed at 7 to hopefully raise it, you shud be between 6.5-7ph for soil growing
if you feed at 7.5 next the run off shud be 6.5
but looking at your plants i wouldnt do that
id keep doing things as your doing for now
anymore yellowing tho and id try n fix it
u will find the bottom leaves die thru out flowering usually from about week 4 from lack of light
as i said tho id defo reccommend trimming the bottom leaves, the bud they will produce will be airy n also itll take away from your main buds due to the plant using energy to grow those small buds