anyone know anything about hard water?

ive been using well water.. dont know if i shoul get floramicro for hard water.. ive been having this leaf curling issue where the plants are great all through veg then soon as i put them in bloom they bud fine but some of the smaller leafs begin to curl.. is that from the well water? the ph is fine and ive already have a few successfull harvests but i just wana know if im missin something.. let me know

hmm I really don't know if the leave curling on the smaller leaves is actually the waters fault per say. I have the same problem with my plant just on the smaller leaves which kind of sucks.