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Glaucus atlanticus Forster, 1777
Paracanthurus hepatus,blue tang fish
Closeup of a  brightly colored Nudibranch crawling  on corals
Colorful Coral Reef Teeming with Exotic Fish. Lively and colorful coral reef in a vibrant underwater world. Diverse array of tropical fish swimming freely in their aquatic environment, creating a mesmerizing scene for nature and animal enthusiasts alike.
Symphysodon discus in an aquarium on a green background
The dorid nudibranch Goniobranchus coi (former Chromodoris coi) occurs in the tropical Western Pacific. This specimen might be 4cm long. Kri Island, Raja Ampat, West Papua, Indonesia, 0°33'18\
Nudibranchs,njuːdɪbræŋk,are a group of soft-bodied, marine gastropod molluscs
queen angelfish, yellow face Pomacanthus xanthometopon,emperor angelfish
Tubeworm, Fan Worm, Spirographis, Spirographis Spallanzani, Feather Duster Worms, Tube Worm, Polychaete, Cabo Cope Puntas del Calnegre Regional Park, Mediterranean Sea, Murcia, Spain, Europe
Cute and dangerous jellyfish swimming in the ocean.
School of Powderblue surgeonfish
Underwater  sea life - coral reef. Orange Sulphur damselfish fish and Fire coral,  deep in tropical sea.
A tiny Emperor Shrimp living together with a nudibranch Mexichromis multituberculata. Underwater macro world.
The Pharaoh Cuttlefish Sepia pharaonis lives in warm water (30°C) and is fast growing. They mate and spawn at 110 days and their life span is 240 days. They lay about 1500 eggs which take 14 days to develop at 28°C. Males are larger than females and most are larger than 1 kg. In contrary to a squid's tail fins, cuttlefish have got a fin fringe running around all of the body side. A cuttlefish moves by undulating that fringe. Additionally, the cuttlefish can use the rocket propulsion typical of all cephalopods: Water is pressed from the pallial (mantle) cavity through the hyponome or siphon (a muscular tube), which is also used to direct the propulsion. So the cuttlefish is driven backward, which it uses mainly to evade an enemy, especially on short distances. This specimen is howering near the Lava Flow of Neira Island, Banda Sea, Indonesia, 4°32'7.9618 S 129°52'30.6844 E at 9m depth
A large lobster approaches the diver in the Caribbean waters of Cayo Largo
POV - you are dreaming away while looking at the peaceful scene under the sea
Pteraeolidia ianthina, bare gill, nudibranch, sea slug
Cute and dangerous jellyfish swimming in the ocean.
Chromodoris Willani
Klunzinger's wrasse (Thalassoma rueppellii) fish isolated on white background with clipping path
Doryteuthis pealeii
Sealife in Sipadan, Malaysia
A nudibranch during feeding in Gökova gulf in Turkey
emperor angelfish, Mutton snapper,French angelfish, sea horse, Cuttlefish , stone fish
Pink decorative coral isolated on white background. perspective view.
The yellow tang (Zebrasoma flavescens), also known as the lemon sailfin, yellow sailfin tang or somber surgeonfish , is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs.
Nembrotha Nudibranch Red Sea, Nembrotha-megalocera
Sea blooming Coral reef  propagated Prickly alcyonarian - Dendronephthya sp.  Hot Orange soft coral Scuba diving  Underwater Sea life  \ncorals propagated
Nudibranch, Hypselodoris kanga. Tulamben, Bali, Indonesia. Bali Sea, Indian Ocean
Jelly fish in an aquarium tank
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