I have a 24g nano cube (see previous post.) I have read (and was told) that i needed more circulation, so i bought a CA 600 powerhead per LFS suggestion.The LFS told me to just "stick" it (with the provided suction cups) onto the side of the aqauarium. I have been reading a number of threads re:24g nano cubes cracking/breaking and even exploding! As a result, i was somewhat "squeemish" about sticking the pump on the glass<worried about vibration. I tried to stick it to the plastic divider (in the back) and the darn thing fell off a few times and blew sand everywhere.<It always seemed to do this everytime we were away! So, i finally just let it dangle and directed the flow toward the back of my live rock because otherwise, it was creating a maelstrom! When i returned the torch coral, i asked the LFS (again) about sticking the pump to the glass and they said there should "be no problem (and besides it's under warrenty.)" <yeah, but what about my carpeting etc.! They also claimed that none of their customers have had a problem. So, any suggestions about where and how to place itwould be welcome. I read on one forum that someone had placed their powerhead in compartment #1 and directed it down toward the sponge but, i am not sure how that would help circulation.Maybe the powerhead is too much??Any suggestions would be helpful. I am going to ask in the nano forum also.Thanks.