allergies to your tank?

[Dez]

It isn't just my own tank. I was doing a water change on my tank at my church a couple of days ago and this happened. One time it was helping a friend do a water change. I hardly have my hands in my own tank, I usually just let it be. But I get no reaction with just my hands in a tank... I don't know. Maybe I'll just hire people when I want to do water changes...

des