I’d second that vote.I’d vote neither and go with a Hanna salinity checker.
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I’d second that vote.I’d vote neither and go with a Hanna salinity checker.
Purchase a refractometer and also purchase a bottle of calibration solution. Check the calibration every time you use it.Which should I buy?
I used a hydrometer and it was WAY OFF! My salinity was at 0.34! It killed off all of the bacteria in my newly cycled tank and killed some of my corals. I found this out after my LFS tested my water with a refractometer. The manager said they won’t even sell hydrometers anymore because of how bad they can be.Which should I buy?
This. I used multiple salinity solutions when I was having my salinity crisis, used several salinity measuring tools at the LFS, I never felt like I could trust any of them since the readings were all over the place.You want both, I have both as well ... Reason being the TM Hydrometer is not convenient to take out and use on a regular basis and it's fragile. I just use it from time to time now to make sure my refractometer isn't acting up or they my calibration solution has gone bad. It's a sanity check.
So I should buy a refractometer and a hydrometer? And maybe I can compare them?I like to use a refractometer to test against what the controller and hydrometer say. So all of the above!