rockwool watering q

I am about to transplant a seedling grown in Rockwool into soil. I have been watering it with water at 5.8 ph. What ph water should I water it with once I transplant it into soil, the soil has a PH of 6.5?

In the soil you can up the water ph to the 6.5 and be fine.If you add soil amendments remember to ph the drainage water to see whats coming out of the soil