I don't maybe its me but i use a power head aqua clear 10 I believe. Its small it was out of my 10 gal fresh. Any way I use that on my shrooms to make them move when I see that they are getting big. When I put it in, I pointed at the bottom of the shrooms and a couple of days they will streeeeeeeeetch out and leave a "foot print" on the rock and poof a baby is born. I have seen were some reefers will take a razor and cut the foot when its stretched out, I don’t want to cut unless I’m really going to frag the whole shroom. I have had great success with this technique. Once they have stretched out moved I take the power head out and let the new babies grow and once they are a decent size I do it again. Great way to fill in a rock. Once the rock gets covered I place another rock next to it and turn on the power head they spread to the new rock rather quickly. If you want to get a shroom off a rock I found that if you turn the rock over the shroom will stretch out to break thru the sand. They are easy to pull off if they have not let go already.