tb19

How can I lower my tanks water hardness??

atmmachine816

Do you mean the GH or KH, I can't remember which is hardness. If your talking PH then some driftwood. You don't need to worry about KH and GH unless you have a heavily planted tank and using co2.

Butterfly

Unless your raising or trying to breed terribly sensitive fish you don't need to adjust any of that. With careful acclimation all but the most sensitive will be happy in what ever your water is.Stable water parameters are much healthier for your fish than fluctuating ones caused by trying to add adjustors.
Carol