They work but:
I run a dehumidifier 24/7 plumbed to my basement sump pump-out tank. Moisture is very low with a single unit sucking off of over 1,600gal. Another thing to consider is the fact that dehumidifier will HEAT your fishroom. I ran 2 for a while in the summer and my basement was toasty, but with drier air in the winter here only 1 is needed for the next few months. The fart fan vented to the outside is the next thing I am doing. I know in alot of states they are code in bathrooms not for odor removal, but rather moisture from hot water. They also make dehumidifier/airconditioners, pricey but nice. Friend has one since his tanks are in a bedroom like yours, and attached to living space. If your growing funk on your windows and the wall paper is bubblin you need to do sumthin fast. Mold don't play, ask NOLA.