Hey, don't let your reef tank poison your family eh
 

Something seems off about this (like the type of coral releasing toxin) but worth a read...

http://www.foxnews.com/health/2018/0...alizes-10.html

pulsing xenia I've cut them, scraped them and scraped my fingers on rocks infested with them with no side effects. I'm wondering if the guy noticed any inconspicuous brown knobs beneath the umbrella of xenia growth?

Chances are there were palys in the tank don't think the Xenia was the culprit.

It’s been making its rounds on the internet and what happened was a rock that had Xenia on it also had some zoas and paly on it as well he scraped the rock clean and it is thought the paly released an airborne toxin that because it was in an enclosed space and kept getting stirred up by people walking by the stuff kept it airborne allowing it to be ingested