Calcium + KH help?

[daplatapus]

Originally Posted by aquatechy

Im running a Korallin 1502 calcium reactor on my tank right now, and the current KH is 9, but the calcium is around 520/540... I want to bring my KH to 10, but calcium seems a bit high... Is this a bad thing? If so, how can I fix it?? The media in the reactor is about 9-10 months old.

Because of the KH/Ca/Mg relationship, I'm curious what your Mg is at.