Thank you for the compliments!

KnifeLord, I'm not sure what you mean about putting the filter in as a CD ROM piece. There would be no easy way to change a filter that went into the bottom of the tank. Were you talking about a decoration that would camouflage the filter?

I decided to use a disposable corner filter for my tank. There's a brace built into the back of the tank to keep the filter in place. Disposable filters run about the same price as cartridge-filters and it makes it very easy to make regular filter-changes.

The handle is too far back to use as a feeding hole. The slope of the back limits the depth of the tank to about 7-inches. A backdrop gives the illusion of greater depth. Some iMacquarium plans call for cutting a big hole in the top of the case for feeding and water-changes, but my plans show how to make a hidden feeding hole using the Apple logo at the top of the case so the whole thing looks stock.

One of the nicest surprises about the iMac's shell was the two little supports inside -- right where the front of the tank would have to sit. It made placing and leveling the tank a lot easier. My iMacquarium design uses an original tray-loader's case. I don't know whether later iMac revisions will have the same supports. The lighting options in an Indigo with clear side-panels present some intriguing possibilities.