Calcium levels

[mjvincent]

I have been dosing Kent marine calcium additive (from the marine start kit) and seem to be stuck right around 360 ppm for the longest time. Any ideas why this might be the case? I am keeping my dKH between 8-10.

 

[malkore]

http://home.comcast.net/~jdieck1/chem_calc3.html

Check that out. I had a similar issue...daily dosing per the instructions on Kent Turbo Calcium got me no where - stuck at 325ppm. The instructions say 1/8 teaspoon per 50gals to start.
Turns out I needed about 8 teaspoons to bump up to the right level!

Now I dose a whole teaspoon at a time and I'm almost up to where I should be.

 

[runway1]

Funny, I can't get under 420 and I don't dose a thing! Regular water changes keeps me about 440-460. And dKH stays about 12-14. I'm a little worried that my numbers stay so high.

 

[ellisz]

Probably different salt mixes. I stay at 420 as well and use Oceanic. They might be using IO of have a large Ca load.