This is a great article, it gives detailed instructions on how to mix to a specific gravity of 1.025g/cm3. What makes this salt good is the fact that it keeps the micronutrient levels right at the levels found in the Earth's oceans. So by changing your water regularly, you don't need to add additional supplements like calcium and magnesium, making this salt an excellent choice for nano aquariums. in my opinion. UPDATE - August 20th 2019 I recently ordered a bucket of this salt from Amazon and this batch of salt is not working well, the alkalinity from the bucket is 6.9 dx when mixed, magnesium is 940ppm. , Potassium 340. All levels are low, now I have to switch to tropical marines.
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