I know this is an older thread but wanted to add in hope of helping others. I did a major maintenance on our tank over the holiday weekend. I cleaned out the back pump chamber of our rsm 650. A ton of detritus (10 years worth) made its way into the main display. Within an hour after turning on the protein skimmmer our entire family and dog started to feel the effects of palytoxin. Sore throats, respiratory issues, head aches, lethargic, I was sneezing and coughing. We have several colony’s of paly’s mostly Capt Jerks and some zoas. I never heard of playtoxin going airborne unless you boil rocks etc. I have been reefing for 20 years and never had an experience like this. We took our dog to the emergency vet and they had us call poison control. There’s virtually nothing anyone could do for this toxin. Luckily by the next day the dog was better and my family is feeling better but still coughing. I know some will say it’s impossible but there is literature on protein skimmers having the ability to put this toxin into the air. I would understand if I was sick because I was in the tank all day but it hit the entire family. My wife wants the tank gone. I want the capt jerks out but am hesitant to mess with them until things calm down. I added a bunch of carbon to neutralize. Also lost a beautiful tang in the process. Be careful and don’t underestimate this toxin.