Raising GH with Equilibrium
How should I go about raising GH in a soft water tank? I believe my tap is only 1-2 GH out of the tap. When I do a 50% water change and only add about 1/8 tsp equilibrium, I seem to get fish that end up developing an ulcer type thing on their body and dying. It doesn't happen all the time, but it's happened enough for me to pinpoint this as the cause. I assume that its from stress of fluctuating parameters.
On water change, would I dose 1/32 or 1/16 and then gradually increase it throughout the week until a point I can dose the recommended 1/8 or 1/4 for low tech ei dosing on water change?