I just used the last of my pH up after making my solution too acidic. My girls need fed soon and my pH is currently at 4.2...yikes! Being that I won't be able to hit up the hydro store was wondering if anyone had any suggestions on how I can raise the pH with household materials? Would pH up for pool supply bought at Wal-Mart work? Thanks for the info ya'll.....peace....................Blazin'