Will it hurt the plants?

Grow Cycle Seedling
1

A question from a fellow grower:

We have discovered that our plants are developing water scale on the leaves and trunks. Will that hurt the plants? The pH in the water is slightly acidic which is what it is supposed to be . . . right??? Will the scale somehow hurt the plants?

2

Well that depends if ph will hurt the plant, hydro is supposed to be 5.5 ph, and soil is supposed to be 6.5, but do keep in mind, peat moss, coco coir, and part pellets also rockwool cubes all need a ph of right around 5.5