Effects of water change calculator

[raultsu]

did I do this right? I want to change 10 gallons of tank water that's at 440ppm with 10 gallons of freshly mixed saltwater that's at 400ppm

 

[mfinn]

400ppm what?

 

[Homestead_Dad]

Calcium I assume.

 

[mfinn]

Calcium I assume.

I saw that in the chart after closer inspection.

 

[raultsu]

Yeah calcium

 

[Randy Holmes-Farley Verified Community Expert]

I'm not sure what you want checked in the graphic, and ignoring the accumulation number (which seems out of place for calcium), the answer of 436 ppm is correct.