Oct 10, 2022 · An older salinity scale is ppt (10-3), where salinity is defined by “the salt content is the weight of the inorganic salts contained in 1 kg of seawater if all bromide and iodide are replaced by …

Dec 7, 2025 · About 2 to 3 months ago, the salinity started to rise, to about 1.027. (I calibrate the refractometer monthly). It stayed there for a while, all animals in the tank seem to be doing well. then …

Feb 2, 2018 · I rejoined the hobby back ~2016, and everyone seemed to agree that 1.025 was the perfect salinity. Lately though, more and more I've been hearing that 35 ppt is what you should target …

Mar 21, 2024 · General Salinity Discussion As far as I know, there is little evidence that keeping a coral reef aquarium at anything other than a natural salinity level is preferable. It appears to be common …

Apr 14, 2020 · Direct Salt Addition Calculator Aquarium calculator; Estimate the amount of solid salt required to raise salinity to a target level.

Dec 21, 2025 · I used the cleaning technique the previous answer mentioned and the reader showed something totally off like 38 ppt. So now I am 99% sure it was a failed maintenance on my salinity …

Jun 12, 2018 · What is your ideal salinity. My tank is at 79 degrees F and has a specific gravity of 1.022. I read in ppt that that equates 31.6 ppt salinity. What is the ideal range you guys have success with??

Aug 8, 2022 · So I got a Hanna Salinity Tester which by default is in ppt and the calibration packets are by ppt but can also measure by S.G.. Now, I heard that ppt is a more accurate measurement (correct …

May 10, 2020 · The salinity probe's readings are significantly affected by temperature - the TC factor setting allows you to compensate for this if you also have a temperature probe configured. The rest …

Dec 26, 2024 · Salinity probes are nice, but the ones that are affordable tend to drift and require constant maintenance/ calibration etc… I am referring to salinity probes that are constantly …