Thanks for your help. I am on well water and I've learned the hard way that if I do too much of a water change, my PH will shoot up to over 8.6. Right now by doing smaller changes, I've kept it stable at around 7.2 for over a month. I'll do a smaller water change every other day for a few days. My nitrates are usually really low, even with a planted tank.
Thank you again-have a good Wed. Raining in CO, we need it.....