Feb 17, 2021 · A=Current Tank Salinity C=New Water Salinity t=Total aquarium volume r=Removed volume of water R=Remaining volume of water D-Desired Salinity (edited) Here's are some examples of it working. Say you have a 80 gallon tank, the salinity is sky high at 1.030, and you're wanting to do a water change to correct it.

Jan 4, 2025 · Hello fellow hobbyists, I recently acquired a Red Sea XL200 and have a quick question on Salinity. I've tried some calculators and searching threads, but I can't seem to form a conclusive decision on how to proceed. My current tank is at 1.025 / 33 PPT. I want to get it to 1.025 / 35 PPT...

Dec 10, 2015 · Refractive Index and Salinity Aquarists can use the effects that added salts have on the refractive index of a water solution to determine the salinity of reef aquarium water. As the salinity of seawater rises, the amount of salt added rises, so the refractive index rises. Figure 1 plots seawater’s refractive index vs. its salinity.

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 an equivalent amount of oxides” (Knudsen, 1901). In summary, I should aim for a PSU of 35 (vs 35 PPT).

Apr 14, 2020 · I just bought a Hanna salinity checker and checked both the water I was mixing and the tank water. For a while I’ve been using a secondhand refractometer, which I’ve never calibrated myself (rookie mistake, I know). I’ve always tested it to ppm, and it’s come up as 1.024 specific gravity.

Jun 17, 2022 · One possible work around is to determine the salinity of a sample of seawater using a laboratory grade hydrometer, and then using that seawater to standardize the salinity meter. One salinity meter could only achieve a precision of plus or minus .001 specific gravity units as the reading would change dependent on how the probe was positioned in ...

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 me if I'm wrong) since it's based solely on salt, while S.G. factors in temperature (which gets...

Jul 12, 2008 · As for the Salinity, it is a little disconcerting that so many of you are having difficulty with the salt. This is the highest quality salt on the market right now and we go to great lengths to achieve that. The Salinity is not an out sourced salt like other salts on the market, including our Reef and Marine Salts.

Apr 25, 2013 · What are you using to measure your salinity? If it's a swing arm type hydrometer it may be giving you a bad reading, i.e. micro bubbles on the arm will cause a high reading. Ultimately, it would be best to use a refractometer that has been calibrated with a solution that is at the refractive index of the sample you will be testing, i.e. a SG of ...

Jun 15, 2020 · 2. measure salinity in an isolated container. Pump water in, make your measurement, pump water out. Repeat each time you want a measurement. This is the best way if you want accuracy on the measurement. It will remove all the electrical interference.