looking for balanced alk Ca chart

[19bwb67]

thanks

[Mike O'Brien]

FWIW, those chart's are not reflecting number's you should actually strive for in a reef tank. Rather they just extrapolate on the fact that 1 meq/l of alkalinity is used for every 20 ppm calcium during calcification.

[Randy Holmes-Farley]

I recommend 380-450 ppm for calcium and independently, 2.5-4 meq/L (7-11 dKH).

This article has more:

Reef Aquarium Water Parameters (a summary general article)
http://www.reefkeeping.com/issues/2004-05/rhf/index.htm

this article may also help:

Solving Calcium and Alkalinity Problems
http://www.advancedaquarist.com/issues/nov2002/chem.htm