Blennies add personality and character to any marine aquarium. They’re a fascinating marine fish to watch as they perch and dart about the aquarium. They’re very expressive, as their eyes on top of their head survey their surroundings. Sailfin blennies and Yellowface Pike blennies are among our best sellers. Both of these fish display their personality by moving their dorsal fin, though this is most visible in the males. Most of the blennies offered are reef safe and amiable with other fish. Overall, with their hardy appetite, blennies are easy to maintain and great aquarium fish.