Calculate final water volume before adding salt.

[fr3n0z]

Hi guys, stupid question...

For my AWC I have a 20L container.

If I put 20l of rodinand then add 830gr of salt (Aqua forest reef salt, 41.5g/l for 35ppt) now the volume is higher (not sure if is 830ml higher).


Any way to calculate how much rodi and salt mix to reach exactly 20l? (+/- 100ml)

 

[threebuoys]

You can use the calculator found here:

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During the course of caring for our fish, we often need to make calculations regarding several recommended treatment options. Most water quality maintenance steps are supported by calculations provided in the "Reef Chemistry by Randy Holmes Farley" forum. Taking it a step further, additional...

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[Randy Holmes-Farley Verified Community Expert]

The volume change is small and typically too small to worry about. It is smaller than adding volumes together.

1.000 L of seawater at 35 ppt contains about 988 ml of water.