i have a bunch of red mushrooms i have had for years i thought i got rid of them but about a year ago one popped up now i have allot and they are about 4 inches.they build up nemocyst on the edge of the oral disc and it is potent, one of the worst stingers i have found. it took out my fav rose bta for two weeks with a sting and he still isnt 100 percent yet.so be carefull what you put next to youre rodactus caralmorphs they just dont look pretty they pack a punch if needed to.now my gold stripe marron hosts the large mushroom that the nem is recovering.i was moving my duncan frag out of there way resterday cause they were getting to close and my arm rubbed the mushroom and lit my skinn on fire for 2 hours .vinegar did nothing to stop the burning then the iching.now i have been stung by many things: red jellies, man of war jellies, anenomies from carpet to the bali fire anemone i have. none compared to this red shroom.i wonder if its just a super shroom or all of this starin packs that much of a punch?:mixed: