What alkalinity for corals?

[jagermeister]

My alkalinity test doesn't give specific values. It measures alkalinity on a scale from low to high. Where do I want my alkalinity for healthy corals?

 

[attml]

Is it a scale of yellow to green to blue? if so, you should keep it on the higher end of medium or the lower end of high. To put a number on it in the 10-14 dkh range. Good luck!