My tap water has an oddly high ph of 9, and it is a problem.
I have tried oak leaves, but I hate the way they look in the tank, and they turn the water yellow.
I was thinking of getting those chemicals that you can find in some pet stores that lessen PH, but I have heard that they can be bad, because they replace some elements with other toxic ones.
Do you have anything to say about them.. your experience, or tips on how to lower water ph in alternate ways?
Oh yes, and my tanks are not salt, they are cold water/tropical