bonbon....is white vinegar ok to use as a ph adjuster or should I buy a product specifically for that use....I am also using an aquarium ph liquid drop tester, should I spend the money for a more reliable tester? Also do you think I should give my plants a dose of bloom formula 1.5-4-5 just to be safe or continue with my veg 3-1.5-4 until I induce flowering? I can't tell if I need phosphate.