SourDeez

<span class="link_user">@SourDeez</span>, nah like i said input 6.0 but you want to measure 6.5 on the way out, this should be done by your soil naturally, but that&#039;s not happening. Adding silica in flower is going to cause more harm than good (pH issues with silica) . This problem seems like it&#039;s got worse and the pH has not fully stabilised. Instead of silica , try adding humic acid with your feeds. Humic acid will pH to 6.5 . The pH perfect nutrients are not exactly pH perfect sometimes - go figure ! :facepunch:

<span class="link_user">@CRiSPrGrow</span>, Thanks for the fast reply. What&#039;s weird is all of the plants are the same strain but each one seems to be showing different things. Like Number 6 on week 7 has just a single leaf that has a bunch of black and also one leaf with a huge yellow spot that I never noticed (Definitely wasn&#039;t like that last week). I still think I have pH problems or the soil is to Alkaline but it&#039;s really just a guess. I water in at about pH 6 and then the runoff comes out at 6.8ish. The silica blast is coming today, do you think I should pH my water up to like 6.5?:pray: