During the cycling process Ph is not that much of a concern. afterwards your Ph will be more important. There are two natural ways to manage Ph. First, promote good gas exchange between your tank and the air. This is done by removing the glass covers, if you have them and by creating surface aggitation via a powerhead that gently ripples the surface if the water. If you set your lighting fixture directly on the glass cover do not take it off until you have come up with a solution for the lighting. The other way to keep Ph at appropriate levels is to do regular water changes. Most commercial salts have Ph buffers in them to help with this. Doing water changes during your cycle will make it longer.
Some people are like slinkies...they serve no real purpose yet can still bring a smile to your face when you push them down the stairs!:p
Have a great day! Brian