To Boost GH or not?
Right now my GH is at 4 after a 50% water change. I was having issues with a high GH recently but finally got it down to 4d Gh. I also just started EI dosing. Should i hold off this week with the GH booster? It's 3:3:1 K2SO4:CaSO4:MgSO4. Being that my GH is at 4, does this mean i have enough Ca and Mg in my tank already? And does anyone know how much of this booster would raise a 55gal 1d Gh? or 100gal if thats easier?