Need some help with new water dKH and Calcium levels.

I am adding a 15 gallon fuge to my setup. There is 10 gallons of new water in the fuge already and close to 5 extra gallons of water in my sump.

Current Parameters in DT are:

Calcium 440
dKH 10.6
Magnesium 1350

Normal Saltwater Mix Parameters are:

Calcium 480
dKH 8.5
Magnesium 1260

I mixed the new water inside of my fuge and added some dKH buffer but apparently I have added too much the parameters are as follows:

Calcium 370
dKH 16+
Magnesium 1280

My ideal parameters are:

Calcium 460
dKH 12.5
Magnesium 1390

Now how do I fix my new saltwater before adding it to my full system? I cannot just add it and let it mix in hoping my dKH only raises to around 12.8?

Can I adjust the parameters in the water in the fuge tank before adding it to my tank? How do I do so?

Thanks.

 

I would try dosing calcium in the fuge to increase if by 80ppm ( before its connected to the DT, and as such you could dose this in 1 go, as there is nothing to harm by doing so)

if you increase the Calcium by 80ppm , with the current mag level, that could cause up to 4 degrees of DKH drop, so from 16+ to 12+ which is your target

the new readings , should then be
Mag 1390, Calc 450 and DKH 12+

Steve

 

+1 Steve