Cool thanks for the advice guys. In retrospect, the spot where it ended up, seems to be perfect for it. Gets good light, and low flow.. and Is protected by the rock. And as far as them not moving on their own, all 4 of the mushrooms that I got were attachted to one piece of LR rubble. After a 8hr dark period, all 4 had moved from one side of the rock to the other. And they are in a low flow area already.
Not disputing or arguing, just sayin they moved! ;p