SPS Tank O Death

[Myka]

Originally Posted by michika

Rock is all years old, came from reputable sources, LFSs or came dried. The bulk of it is stuff I've had since 2004.

The glass is the only thing I can't account for. Everything in the tank aside from the display tank glass was previously in use in one of my other systems. None of my other systems had any problems with SPS. I only know part of the display tank's history, I was told it was used as a macro grow out tank and that no chemicals were used in it. Although for all I know the glass was previously used for another purpose and could have been exposed to something that may have leeched into the glass.

So this rock was previously run in another system of yours I assume...? If it were my tank, especially considering it's only 24g, I would pull the rock (and sand), and replace it with different stuff from one of your other systems possibly. At this point, I think the biggest suspect would be the rock. Even if it was run in a different system before... I know you had some GHA issues in the tank previously.

I'd have a really hard time believing it was the glass. Possible...but unlikely for sure.

I would also suspect the silicone before the glass.

However, I doubt it's the glass or the silicone, as I believe if that were the issue it would affect all the corals. Honestly, I doubt it's the rock either (although that's an easy try). If I ignored all the information I know about your tank (I skimmed your journal), and was just told, "hey my softies and LPS are fine, but my SPS are dying, what's wrong?" I would immediately suspect parasites, flow, and micronutrients first. Do you know what red bugs, and AEFW look like? Have you seen them in person before? Can you test for Strontium, Iron, and Silicates? Can you take a short video clip of your tank that will show the polyps waving in the flow?