The Planted Tank Forum - View Single Post - TDS (Total Dissolved Solids) & It's importance in Shrimp Rearing
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post #8 of (permalink) Old 09-07-2011, 08:59 PM
These pants? are fancy.
mordalphus's Avatar
Join Date: Jun 2010
Location: Seattle, WA
Posts: 7,997
Yes, tds could be "cleanliness", ro water has close to zero solids disolved in it. Water with nitrates and phosphorus has more solids dissolved.

Reconstituted ro water measured with a tds meter will yield a ppm of hardness, only because you have only the hardener dissolved into the water
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