This topic came up in another thread. I figured why not start a thread on it. Does anyone have a fish aquarium? If so what kind do you have (shape, gallons, etc). What kind of fish do you have? Here is what I currently use.
Its a 35 gallon and I run on a Cascade 100 filter. Oddly, I don't have to replace the filter cartridge much. The water stays pretty much clean for the most part. I have around three fish in it now. I haven't got around to buying more but plan on it.
Here is a shot of one of my favorite deocrations, one of my tetra decided to block it but its a shipwreck. I'm a huge fan of non traditional decorations. It seems most places only sell the treasure chest with bubbles now.