Pszemol wrote:
I have heard stories about this blenny being aggressive towards other fish.

Mine is fairly tame although I've seen it chase a blue damsel out of his
rabbit hole. He roams the entire 110g tank, but seems mostly content to
sit and watch happenings both inside and outside of the tank. I wonder
what goes on in its little head sometimes. I've seen my tang and
blenny feed on the nori simultaneously. No fireworks.

But, Pszemol is right. Definitely think about what you want and plan
accordingly to avoid aggression.

--Kurt