Kalk Vs. Calcium Reactor

[kzickovich]

I'm thinking of buying a calcium reactor for my 90 gal. reef tank. Is there a advantage to using a kalk reactor rather than a calcium reactor?

 

[glxtrix]

lots of people use both. The CA reactor will generally lower a tanks pH and the addition of a kalk reactor will help boost the pH. With a kalk reactor, you will still need to add CA and ALK from time to time. The kalk just helps maintain those levels a lil bit better than doing daily dosing. The CA reactor will keep your CA and ALK levels where you set them and usually dont require any additional dosing.

 

[hyperfocal]

Keep in mind your Ca and Alk consumption rates will influence the decision. Tank size and evaporation rate will as well.

A large SPS tank will have a hard time getting by on kalk alone, a small mixed reef might easily be able to.