Health

Anything that may trigger an allergy attack in an aquarium can be easily controlled--unlike pet dander, which is pretty well present with any pet. Cleaning the surfaces exposed to water regularly, and avoiding materials that will absorb water like wood is easy enough, and part of regular maintenance anyway. I've never had a reaction to my tanks--and know that the humidity provided from the tanks actually helps quite a bit with asthma.

There are many people who have a skin reaction to a variety of fish foods, with blood worms being most prominent. Flake foods that crumble easily to dust can become airborne more readily--but with the variety of foods and packaging, even that shouldn't be a problem.

I'd also point out that a huge number of hospitals and doctors offices have tanks. Just as they don't keep blooming plants due to the allergy potential, I can't see them keeping an aquarium if it was a common trigger for asthma.
 
I live in a desert. We use a humidifier in our bedroom always. My son's room on occassion. No idea of actual numbers, but with outside humiditybeing at best low and worst, not there... you get the picture. Right now it's 80*F out with 18% humidity. Welcome to mid April in West Texas.
 
It's quite dry here in Central Alberta, especially in winter. I found that my asthma was much better (non-existant) when I lived on the West Coast with the high humidity, however the year-round pollen took it's toll on my allergies. Now that I'm living in Alberta again, I typically only have asthma attacks when the central heat comes on for the first time in the fall (dust mite allergy).

I've heard that some people have problems with asthma in humid climates and do better in drier climates. Who knows why?! All I know is it sucks to have to deal with asthma and allergies.
 
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