All kidding aside (camshaftramrod, I liked yours the best

), what are your water parameters? Using carbon to get rid of the smell is just covering up the real source, this is why I will never use carbon unless getting rid of a medication.
Sounds to me like a water quality problem because i have spilled obnoxious amounts of fish water onto carpet floors and never had a problem with smell.
After we get your parameters, providing they are in check, take a damp cloth and clean underneath the plastic rim on the inside of the tank. You know, the part that overhangs the water... I had an interesting (that is the only was I can describe it) smell on one of my tanks and cleaning that off was the only thing that could fix it.
Next, if the above doesnt work, I would suggest getting some of that pet odor, vacuum up baking soda (or just regular baking soda... this stuff smells better) and sprinkle it around the carpet, making sure to vacuum thoroughly.
Next is the fabrics, if the carpet is not the problem, wash anything that can be washed and everything else needs to be smelled.
Last, but not least, if none of the above work to rid your room of the odor, look in vents, behind the stand, etc for anything that could be causing an odor.