TDS

What does TDS mean?

TDS (Total Dissolved Solids) is the sum of all dissolved minerals + ions in water, measured in ppm via electrical conductivity. Tap water TDS: 50-500+ ppm (highly variable).

How is TDS used in aquariums?

Tap water TDS: 50-500+ ppm (highly variable). RODI output target: 0 ppm. Replace DI resin when TDS climbs above 1 ppm at the output. Test with a handheld TDS meter.

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Frequently asked questions

What does TDS mean in fishkeeping?

TDS (Total Dissolved Solids) is the sum of all dissolved minerals + ions in water, measured in ppm via electrical conductivity. Tap water TDS: 50-500+ ppm (highly variable). RODI output target: 0 ppm. Replace DI resin when TDS climbs above 1 ppm at the output. Test with a handheld TDS meter.