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First- no but I looked into them last year. Talked to my hydro store people. Left with the thought there is no such thing and one should PH regardless.
A grower I respect swears by the Advanced line. I have not made the switch tho.
If you have a method that works for you and your plants are thriving. Then stay away from the new improved stuff until it's been proven to you that it works. There is a lot of shite out there trying to get you money.
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