Rapidly Declining Xenia

[FragOutpost]

The Seachem Reef Advantage Calcium should not raise your alkalinity. So you are not adding any alkalinity supplements and your alk stays above 12? What kind of salt mix are you using? You have a DSB right? I would continue using the Reef Advantage Calcium to maintain calcium around 400.

[EvilTwin]

Instant Ocean salt. Sand bed is 3 inches deep

[FragOutpost]

I use IO salt and after aerating and mixing with a powerhead for a couple of days the alk of freshly mixed IO saltwater measures about 10-11.

I have trouble maintaining the alk in my tank between 8-9 and I add about 2 teaspoons of Seachem Reef Builder (carbonate alkalinity) daily.

I'm just trying to figure out what is causing your alk to be so high since you are not adding any alk supplements.

[EvilTwin]

I suppose I'll have to check my tap water. I use a DI unit for my new water so I always assume that it gets everything out.

[FragOutpost]

How is the xenia doing now?

[EvilTwin]

Not much better, I'm afraid. But not deat yet.I got the two separated stalks off the bottom and rubberbanded them to a small rock. They still extend each day, so they are still living. I'm crossing my fingers.