Posted by Hans on 6/5/2004, 5:55 am, in reply to "hard water" The thing is, if you've ever tested the water in the fish stores, their PPM is around 1,000+ PPM.........Hans
4.26.252.208
I'll do water changes periodically. My PPM is around 410 out of the tap, and my tank runs 500-600 PPM, and my fish seem to do OK. I was using the 2 ion exchange resins, and trying to make it work....I never perfected it, but they are really the best way to soften water, since they exchange the mineral ions for H+ and OH- ions, which are the ions of pure water. They need to be regenerated periodically, one in muriatic acid, and the other in a sodium hydroxide solution.
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