Can HARD hard water be lowered? Its not yet in my tank. My house tap water is getting really hard/odor to it. which i was told it was hard water. Will the tank water test kit still be able to test the water or do i have to test it on a bigger scale? Of and with the fish bellow can they stand hard water? i have a few Procks and some Drift Wood. I think it will help lower the hardness but i have never ever test the hardness cuz it took to many damn drops and always ended with me missing the right one drops so i like to say in the 400~. What are some tips to lowering hardness?