Ya it is starting to move :grumble: so I put the rock it was on down on the bottom of the tank by my LG green bubble tip and I also have a small light color green/whiite bubble tip . I had moved it by my carpet anenome but then I figured he's a little evil :evil!?!?: so I put it on the other side... Of corse it did'nt move all day today and now that it's late at night I won't be able to keem my eye on it :ugh: