Most dangerous fish/invert

[Zelax25]

Fox face son got stung one time at a joint on his finger swelled up quite big and had to be lanced

 

[Greybeard]

I have a smith's 'fang tooth' blenny, supposed to be venomous, but he's certainly not dangerous. Same with my orange spot rabbitfish. I figure, don't try and catch them with my hand, I'll be fine.

I do have one small colony of Palythoa, but they're not really dangerous either... as long as you know the risks, it's not that hard to keep from getting yourself poisoned by them.

I'm probably much more likely to be electrocuted by my tank than I am to have one of the animals in it injure me. I suspect the same is true for many of us.

 

[Steven91]

I have a foxface that will let me pet him...

I wish mine was like that, mine hides most of the time if i go near the tank