Not as much as i can do , had low ph from combo of salt build up and need to run an enzme to help break down old roots. Organic bloom booster didnt help ph either but thats hind sight for you.
@Applejaxxx, 70 days ish bloom any longer too much amber and foxtailing . ive done it for few weeks longer no difference in weight only thing if it makes you sleepier and buzz length shortens.