Dosing 2 parts but calcium wont go past 350

[mxm]

My salt mix is around 410 Calcium and I'm dosing 2 part, but my calcium wont' go past 370. If I increase the 2 part dosing then I get higher Alk but calcium only notches a little bit up. How do I get calcium to reach 410? Right now I have Alk 8.5 and Calcium 350.

 

[shifty51008]

What is your mag levels? What test kits are you useing? How much are you doseing? And how long after you dose do you test? What size tank?

 

[mxm]

Salifert for Calcium. I'm dosing 13 ml of each part per day (ESV Bionic). My tank is 65 gallons.

Magnesium was low 2 weeks ago, so I dosed it back up to 1380. Could the test kit be the issue?

 

[shifty51008]

Could be depending on the age of the kit.
What corals do you have in the tank?
How long after you dose do you wait to test?
Do you see pumps or your heater getting a crusty buildup?
When you up the doseing you dont need to raise the alk with the cal, there are tanks that arnt equal.

 

[mxm]

Kit is not expired.
I have about 20 lps and 1 sps
About a week
No buildup that I can see

I thought u always dose the same amount of part 2 dosing.

 

[downbeach]

You can dose one supplement or the other to get your param's up to where you want them, then go back to equal parts of the two part you are using. I would ensure you're SG is accurate/consistant, if not you could be adding too much/little of those elements when you're doing your WC's, which will skew your dosing.

 

[mxm]

Ok ic, thanks. I'll dose a bit more calcium then.