That is the first time of me actually hearing one of these taking out a system, sorry for your lossDON’T TAKE THE GAMBLE! I had a Holothuria edulis in my 680L system, it was the size of my little finger. I had switched off pumps to feed fish as is my morning routine, put Nori in clip, Nero pumps restart after 15 mins. Cuke had climbed about 18” up the glass, and into a Nero 5 pump. Normally the Tangs would have demolished all the algae in the clip in about 45 minutes. Hardly any of it was gone, so it must have happened when pumps restarted and I was getting ready for work.
Went in the next morning, looked in the tank and thought ‘where is everybody?’… then I saw them all either floating or on the bottom. 100% mortality. I still hate myself for putting that cuke in there and it’s been a few years now….