REEF SMAC
New member
And the answer is!: (90x8) + (10x14) / 100 = 8.6
Thank you...

So everyone is worried that their Alk might change as much as .6 ?
By somehow getting some salt mix that is radically different than their tank's parameter.
Is a .6 change in Alk really an issue?
I guess most of you guys must doing huge % water changes.

ESV here. Nothing I have ever tried comes close in terms of consistency and water clarity as it is mixing. The other thing that is/was really huge for me is the fact that ESV mixes so quickly. I recently had a situation where I required a 100 gallon WC asap (very large anemone of many years decided to blend himself in an MP40. In a perfect world I would have had standby water but I only had about 10 gallons of RODI since I have a small apartment. I went to home depot, bought 100 gallons of DI water in 5 gallon jugs, brought them up to my apartment, measured out 5 gallons of ESV into each bottle and rolled them on the floor for about 30 seconds and did a 100% change as fast as two people without a large WC system in place could do it. I know I wouldn't have felt comfortable with many other salt brands in the same situation.
I'm not sure about the prices in other places but in NYC (where ESV is located) it is not much more than other salts.
This would be the reason to have salt around that is exactly the same parameters as your tank.
I guess this is the senario everyone is worried about right here.