Why shouldn't you mix Calcium to TM Part C?

[Muffin87]

@Randy Holmes-Farley, what's the reason for not mixing Tropic Marin Part C with the Calcium solution? Stability?

This came to my mind as a webpage from Triton implies adding NaCl-free sea salt to the Calcium solution is actually doable, but will make the solution less stable in the long term. What does that mean practically?

Thanks a lot

 

[Muffin87]

Never mind, I found your answer in this thread an hour later, after 2 wks of digging.

Just posting here for anyone who might be wondering about this in the future.

 

[Randy Holmes-Farley Verified Community Expert]

Yes, to summarize, calcium sulfate precipitation is likely to happen if you mix calcium chloride and Balling Part C or any other third part of a two part system (such as my original recipe) where magnesium sulfate is the sulfate source.

To make a true to part, you need to use sodium sulfate as the sulfate source, and put it in the alk part.