2 part dosing help

[Spitty]

Im currently trying to setup a 2part dosing routine using Esv Bionic. My current tank levels are:
Alk 8.4
Ca 380
I would like to raise Calcium to around 440 ppm. Should I dose just the Calcium part to raise it? Or will this lead to instability?
Any advice is appreciated.

 

[ryeguyy84]

Yup just dose Cal,. It would be an adjustment dose

 

[Spitty]

Ok, but don’t raise it more than 50ppm in a day correct?

 

[Spitty]

This is a tank volume of 240 gallons and according to the brs calculator it says add 1,400 ml of Calcium, that seems extreme.

 

[Spitty]

Oh, this tank is about 7 months old with just a few corals in it, so I’m kind of surprised with the Calcium depletion