Probably Dumbest Question of the Day...
How do you guys measure hardness and softness of water? I have the API Master Freshwater kit but it doesn't have a test for that?? I never paid attention to hardness or softness but I'm getting ready to buy some high grade CRS and guess now is the time to care. Also, TDS? I know that this is probably a real dumb question but I don't have any clue.
Can anyone recommend a good test kit? Website? Links? Etc?
Last edited by haddaj04; 11-04-2011 at 11:19 PM.
Reason: added TDS