I know this is an old thread but I think I stumbled on how to get stringy ones to bubble up. Mine have always been long and stringy. I started with one a few years ago and it has split a bunch of time and I've never really seen any bubble up. Right now I have 6 of them in my 350. 2 of them were in slots I wanted them to move from so I literally started poking at them with my reef tongs to try to **** them off enough to get them to move. And I mean poke at them. I jabbed at them till I couldn't get them anymore cause they were all retracted into there rock. Well to my delight the 2 I poked at are all bubbled up now. First time ever that they've been bubbled. That's what did it for me. Kinda like an earlier post that said they only bubble when stressed. Do you guys with bubbled up nems have lots of hermits? Do you guys with stringy ones have hardly any hermits? I got a theory is why I ask. I'll do a vid to show my 6 soon. Lights are out now