OK. I guess I'm just over worrying.. I did my research and everything said it was inert!
I did empty 99.9% of everything out of the tank (also trying to get rid of Duckweed
, although I'm sure it'll show up again lol). I'm not exactly surprised by the water's pH, I just didn't think it'd stay that way so long. I know my water has nearly no buffering ability so it should naturally go down regardless..
Does water's pH usually decrease over like 24 hours? I remember reading that it's good to let your water for your PWC sit out over night so that it'll be closer to the tank's water. I'm scared to stick my
shrimp in there if the pH may change dramatically... :/ I've never left the water out over night because for whatever scientific reason, my pH doesn't change in the tank when I add the tap water. I'm guessing that's due to the lack of a buffer, and because I'm usually changing out 3-5 gallons a week. I don't know how adding about 4 gallons of my old, acidic tank water will change the overall chemistry.
By the way, I think saw your lecture on planted tanks at the SCAA get together last month? If this was you, thanks for the awesome lecture. My mom's going to start a planted tank now! She was debating on it, but after your lecture she was sold! I'm so glad you weren't focused on all the high tech methods.. I was afraid she might be scared off if that were the case. She loved the slide show. :)