Species found in El Tanque (max. depth 26 m):
Threespot damselfish (Stegastes planifrons)
Garden eel (Heteroconger longissimus)
Creole wrasse (Clepticus parrae)
Barred hamlet (Hypoplectrus puella)
Sharpnose puffer (Canthigaster rostrata)
Yellowhead wrasse (Halichoeres garnoti)
Blue chromis (Chromis cyanea)
Blackcap basslet (Gramma melacara)
Schoolmaster (Lutjanus apodus)
Yellowfin mojarra (Gerres cinereus)
Sand diver (Synodus intermedius)
Yellowhead jawfish (Opistognathus aurifrons)
Stoplight parrotfish (Sparisoma viride)
Houndfish (Tylosurus crocodilus)
Masked goby (Coryphopterus personatus)
Bluestriped grunt (Haemulon sciurus)
Indigo hamlet (Hypoplectrus indigo)
Great barracuda (Sphyraena barracuda)
Bluehead (Thalassoma bifasciatum)
Blue tang (Acanthurus coeruleus)
Bandtail puffer (Sphoeroides spengleri)
Zoanthid (Zoanthidea)
Corky sea finger (Briareum asbestinum)
Knobby sea rod (Eunicea)
Grooved brain coral (Diploria labyrinthiformis)
Orange icing sponge (Mycale laevis)
Azure vase sponge (Callyspongia plicifera)
Scattered pore rope sponge (Aplysina fulva)
Stove-pipe sponge (Aplysina archeri)
Pitted sponge (Verongula rigida)
Yellow tube sponge (Aplysina fistularis)
Tubular thicket algae (Galaxaura)
Flamingo tongue (Cyphoma gibbosum)
Banded coral shrimp (Stenopus hispidus)
Yellowline arrow crab (Stenorhynchus seticornis)