Tank crashing...could it be due to these?

[Son Of Skyline]

Originally Posted by reef_raf

Mason, do you have any xenia? I had some that I couldn't kill before and could never get rid of. I realized lately that it has died off on it's own. I also notice my hammer doesn't extend like it used to. All other corals are fine though. Not sure why it's just the acro...

Yup, I have xenia. Mine aren't affected though. My xenia still looks good and is still spreading