03-15-2012, 07:37 PM
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Originally Posted by sonflowerjoela
Hey I found an old water hardness test kit in my aquarium stuff. It says my hardness is 180, can that be right???? Could it be wrong because of being old??? If it is right what fish could I keep in water this hard. The kit calls it high hardness???
If that is accurate, it will be ppm (parts per million) which equates to 10 dGH which is medium hard. We should confirm this test though. Second thing is pH, presumably above 7 but that needs testing.
Livebearers will be right at home. Rift lake cichlids. Some cyprinids and characins are fine in medium hard with a slightly basic pH in the low to mid-7's, as are medium Central American cichlids, and many catfish.