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sorry shoulda explained better...ya alot of plants thats a good range....but every plants different, gotta find the sweet spot for that plant...ive had some plants like it all the way down to 4.5, but majority like it up there hovering between 5.8-6.2

Nice one didn't know that, thanks a lot for the valuable info man! ;) Keep em safe and healthy, good luck and thanks again :)