Recently I started running purigen in my tank (start of the week) and today I tested my water as my channa was acting strangely.... To my shock, my pH has gone from a steady 7.0-7.1 to about 8.2!! This has happened without adding any new rocks or ornaments. The only change to how I keep my tank is that I have started running purigen and have been using prime as my water conditioner. Any idea whether the purigen could have caused this? I'm going to do some water changes to try and get the pH down, but I'm worried that its going to keep going up without me realising... Anyway thanks for reading, would appreciate any input,
Hannah
Hannah