LIONFISH
When it comest to playing nice with others, the Lionfish fails miserably. They are known to be quite aggressive towards other reef fish. Considering how poisonous they are (human fatalities in children and the weak have been reported), it is never a good idea to cross their path.
Diver Tip:
These poisonous (but beautiful) fish can typically be found on the edges of the reef and they seem to prefer the turbid inshore areas (great… this means you can’t actually see the dangerous fish)