Yes, I have had mushrooms release and float all over my tank. I have heard of people taking glue and attatching them where they prefer but I let mine pick their own place and start new colonies
I'm curious why they do this as well... none of mine died off they just moved... maybe they felt crowded?
Kimberly in NE Florida
Cycle complete Early 2-06
2 ph and 1 HOB =460 gph
130watt Orbit lighting system
1 blue green chromis, domino, blue devil
6 turbo snails
1 mantis GRRRR!