I'm getting a 3.1 ppm on my digital meter. I have read that 3.5 in the same as 1.026. I was using a Refractometer for my tank. But I think it is not calibrated right.
What is the right saline # for a reef aquarium?
- Thread starter charlieborg
- Start date
I have found that most of the digital meters are crap.There are some high end ones that work great when calibrated properly but most of those are $500+ I now rely on a veegee refractometer and home made calibration fluid.I also have a tropic marin hydrometer as a backup
I try to keep mine between 1.024-1.025
I have a refractometer and a hydrometer but mainly use the hydrometer.
My refractometer needs to be calibrated quite often and its a pita. I know hydrometers get a bad rap but as long as you rinse them after each use they seem fine for me...
I have a refractometer and a hydrometer but mainly use the hydrometer.
My refractometer needs to be calibrated quite often and its a pita. I know hydrometers get a bad rap but as long as you rinse them after each use they seem fine for me...
Care to share you recipe for the home made fluid
For most users with reefs, an SG of 1.024 to 1.025 is a good target.
LFS and sellers will often run slightly higher (~1.026) in order to account for their ATO systems dumping freshwster everytime they sell a fish/coral/cuc and scoop up a bunch of water.
And if you have only fish* (no corals or other inverts), you can run much lower, around 1.015 to save money on salt. *Note that specific fish do better in reef salinity though.
LFS and sellers will often run slightly higher (~1.026) in order to account for their ATO systems dumping freshwster everytime they sell a fish/coral/cuc and scoop up a bunch of water.
And if you have only fish* (no corals or other inverts), you can run much lower, around 1.015 to save money on salt. *Note that specific fish do better in reef salinity though.
Yea don't trust the Hannah salinity pen. I used it for close to a year and recently had som corals die on me. After checking everything I found that the hanna even after calibration was way off. I just went back to using a refractometer. That I double check with another refractometer. Hannah was showing 35 but was actually 40
Same here. They aint worth a damnYea don't trust the Hannah salinity pen. I used it for close to a year and recently had som corals die on me. After checking everything I found that the hanna even after calibration was way off. I just went back to using a refractometer. That I double check with another refractometer. Hannah was showing 35 but was actually 40
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