FYI, even Seachem would tell you to not use Neutral Regulator in a planted tank; for planted tanks, they recommend you use Acid Buffer (lower ph) and Alkaline Buffer (raise ph) . . .
these work well IME, and you can use them in conjunction to hit a targeted ph . . . you can also use Seachem Equilibrium to raise your GH, which should help stabilize your ph levels
these work well IME, and you can use them in conjunction to hit a targeted ph . . . you can also use Seachem Equilibrium to raise your GH, which should help stabilize your ph levels