<span class="link_user">@Captain_7</span>, I am not measuring the ph of my Mix. But I know that the fishmix has a ph around 5. And my water is a bit higher because it is hard water and has a higher ph of around 7. So is think it evens it out. Maybe try adding a bit of calmag to raise the ph of your water. I hope this helped you. much love and happy growing