My tap water is at about 15-20 degrees GH. My betta doesn't seem to mind it, but I have to change the filter media quite often, since it gets plugged up with calcium deposits. I've heard that peat moss can help soften the water and reduce the PH a little, at the expense of discolored water. Will the peat moss bother my betta? Are there any other ways to soften the water, other than dilution?
