I just wanted to share that I got a Super Nimble magnet cleaner for my Nanocubes in todays mail and this thing rocks. It is extremely streamlined so it fits in every corner of my nanos. I was even able to remove a couple of spots of coralline (I had to make repeated passes) off of the glass. I am sure alot of you have heard of them before but I am so impressed with this little cleaner I just wanted to share. They can be seen at www.nimblenano.com . I hope someone finds this info useful. Skip