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Cultivated Reef

What's more necessary to monitor: ORP or Salinity?


xgame2k

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IMO salinity because that can fluctuate so much in a nano. I don't know much about orp, but I know people monitor it but usually dont try to adjust it, kind of like it is what it is.

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franklypre

When you say measure you mean you want exact. I use pinpoint salinity meters, you would be suprised how far off even refractometers can get, typical needle hydrometers are useless, IMO & IME. ORP is kinda like TDS, nice to know but not alot of good in a reef tank.

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