My bedroom has 5 fish tanks ranging from 3 gallons to 29 gallons, and two mice cages- 10 gallons with screen tops.

My room doesn't smell weird, but I just really like scented candles and air freshener. If I got a candle, it would be on a candle warmer with no flame, and the air freshener would be some sort of plug in thing. Would these be safe? Would some sort of potpouri be more acceptable? I like potpouri too, but I think my cats might try to eat it If they aren't safe that's fine by me because my animals are more important!

I burn candles in my living room all the time and I have 7 tanks plus a lizard in the room. Everyone is fine. I also had a plug in freshner for awhile that just let off scent but didnt spray.

Just a thought for you, though:

The way your nose works to smell is that it senses fine particulate in the air. "Smells" are actually suspended particles of substances. They have mass.... they are "real" - not some ethereal thing that floats through the air. You can capture them - filter them out - and smell them.

Any time you have actual particulate in the air, those particles of matter are being incorporated into your lungs, your animal's lungs, and your fish's water. That is way cigarette smoke (nicotine is a powerful poison) can kill fish and birds, etc, as can loads of other chemicals found in scented candles, perfumed sprays, etc. If you wish to spray air fresheners in a room with fish, it is suggested that you spray at a level BELOW the tank's top/intake. Most of the chemical will settle by way of gravity to the floor, before being taken into the air system. Candles are more difficult for they put out a constant source of particulate - a much finer one, too. This will become "part" of your lungs, your mices' lungs and the fish tank water/fish.

If you really want to shake in your boots, visit a chemical engineer's workshop someday. The stuff that is used in those products is really rather scary. You may also wish to note that they suit up - in a full chemical bunny suit complete with mask, rebreather, etc..... (My daughter is a chemical engineer - and that section of the company is off limits to anyone ever hoping to have children!)

I use something like this...

http://www.pier1.com/catalog/productdetail...&fh_view=search

Except I have my scents created for me and I love it. I even use them in my classroom and the smell is never harsh or overpowering. So far they've lasted over a year.

I burn those little tart thingies in an oil burner.. they are really smelly.. I always turn the air pump off before I burn it and put it back on in the morning when the smell has settled. Is turning the pumps off enough?

(like these thingys http://www.candle-licious.com/html/wax_melts_tarts.html )

Woah scary! Thank you for the insight Daryl. My dad does something similar I think. He "bunnies up" when he goes into the lab because he is an analytical chemist for a company.