Dirty Little Fishes!

So we went to the aquarium today and there were a few tanks that I just had to stop and look a little more closely at. I mean, is it just me or should these particular fish be in an "adults only" section!?!?! I swear I've bought one of these before!!!
This one's a little fancier but I'm sure the same principle applies.

Such a dirty world we live in :)