Two bluethroat pike blennies fighting

Bony Fishes: Osteichthyes, Fishes, Marine Life, Tube Blennies: Chaenopsidae, bluethroat pikeblenny: Chaenopsis ocellata, close up, copyrighted, fighting, horizontal, landscape, marine, muck, ocean, threat display, underwater, underwater photo

Pike blennies are extremely territorial and will fight others of their kind as well as other species of animals.