Blennies are a calm, friendly, community fish. They are highly captivating and sought after, as they have a truly unique bubbly personality unlike any other type of marine fish.  Blennies will maintain a small territory in which they find a small place in the live rock to sleep and hide.  They do not do well with other Blennies unless they have a very large environment with places to roam and hide.  They accept a varied diet and prefer a few small meals a day.