Calcium + KH help?

[vanreefer]

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.

I would say a DKH of 9 is perfect... ca of 520 is a bit high... I don't think it will do any harm... just end up clogging your pumps... if you slow the flow through your reactor a touch and leave the CO2 bubble count the same your Ca will drop a bit and Alk will rise...