I am growing with canna professional plus. It is 6.2, what is the best ph level for water and nutrients please.
Basically a pH between 6 and 7 is good, aiming for the middle around ~6.5. It may vary a bit depending on your strain but if you aim for 6.5 you’ll be good 🙂
You have the different pH intakes per nutrients on the article over here, it can help out!