small fish inside head cleans gills yellow boxfish ostracion cubicus. amazing symbiosis of marine animal. mutual benefit.

amazing animal animals aquarium aquatic background benefit biodiversity box boxfish cleans close closeup colorful coral cubicus cute dive diving egypt fin fish gills head inside isolated juvenile life macro marine mutual natural nature ocean ostracion overfishing portrait red reef saltwater sea shot small spots swim symbiosis travel tropical trunkfish undersea underwater vulnerable water wildlife yellow