I decided to test the hardness levels in my tank and purchased a new API GH/KH test kit.
The GH is off the charts, it took nearly 30 drops to convert to green. The tap water here takes roughly 18, so I believe the water is hard from the source already and I had a lidless tank that evaporates a lot, leaving minerals behind which I am thinking is the reason for the high level of hardness....however I have no idea how to fix this, or what the potential dangers to my fish are.
The KH from the tank took 10 drops to change from blue to yellow. My understanding is that a higher Kh means more stable pH so I wasn't too concerned about that, but maybe I am wrong in my thinking?
I see that API sells a water softener/pillow to help remove the excess minerals. Is this something i should buy? Given how hard the water from the tap is, I think this is going to be an ongoing problem for me.