If that wasn't a dumb question, then this one probably IS! What in the world is a Hydro Store? Is that like a Swimming pool supply store? I hate asking dumb questions, but I'm over 2 months into my second grow. Last time and this time the cheap meter show my water much closer to Alkaline. I believe it's better to have it closer to the Acid side... I've been reading here about numbers like 6.8 etc. from a kit. Thanks in advance!