Like the title says, have you ever had your hand stung or bitten when you were cleaning the tank, or fixing something that require for your hand to be inside of the water?
Yes. I’ve been bitten a few times by fish (most aren’t bad and actually tickle), but the ones that hurt are by turtles (man they snap hard) or bigger fish.
Yes by a freaking Oscar once! Thing sucks, can't imagine with a shark o something in a saltwater tank.
Nothing terrible, no. Sometimes the fish have nibbled on me a bit, but their mouths don’t really do any damage.