Hi all, just picked up my second piece of coral this week, a little ricordea mushroom. The guy at the LFS said it will pretty much go where it wants. Well, he wasn't wrong, every morning when I get up it is in a different spot. Is it okay to just let him/her float around like that? I'm assuming it will eventually attach somewhere, or should I put him in a glass with some rubble and eventually when he attaches to some, glue him down somewhere?