I'm trying to think back to see if there were any new dosing etc. around that time, but nothing comes to mind. I started dosing kalk in Oct 2011, but that was way before this all started.
I've often wondered if I've got a copper problem in the system somehow. I've always struggled to keep snails, and while I did have a healthy population of pods for the first half of the tank's life, it's been greately reduced lately. I've tested for copper multiple times, and even went so far as to run some cuprisorb in a reactor for an extended period of time, but there was no color change whatsoever. Last copper test was Nov 2011. Will test again just for fun.
I've got a mixed reef, some easy SPS (birdsnest, red digi, green monti cap that's never been green, bird of paradise), couple LPS, branching hammer & trumpet, a big GSP colony. Certain SPS I've struggled with, pretty much anything except what I've got now so I've given up on it for the moment. Tried some green stag, yellow digi etc. but no success. The LPS has always grown quickly, but for the past year I've found it does not expand nearly as much as it used to, which is a shame as LPS is probably my favorite. I'd love to pick up a nice torch but I'm not going to bother until my current colonies start expanding like they used to.
I usually do run carbon in a reactor. Got a little lazy with changing it lately, but it does get refreshed maybe once every month or two.
I appreciate all the feedback and discussion, I would love to get to the bottom of this. While I'm somewhat green in terms of experience (only been reefing for about 2-1/2 yrs), I'd like to think of myself as being pretty well read and it's frustrating to struggle with simple things while I see others making huge mistakes and keeping all sorts of corals etc. that I've never been able to. Now to think that I can't even keep fish and hardy inverts, not very good. Thanks again.
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