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An enormous Rainbow Parrotfish Scarus guacamaia
Just like our own Blackfish, large adults do not like to be approached. The small fish at the lower left is a Schoolmaster Lutjanus apodus.

With the 1/2 second shutter lag of the digital camera you could never
deliberately set up an action shot like this. This is a happy accident.

This school of Angelfishes was so intent on devouring this big
Basket Sponge Xestospongia muta that they took no notice of me.

All I had to do was swim up current, and snap away !

This one is completely upsidedown.

Thimble Jellyfish Linuche unguiculata
Normally, red jellyfish are the kind you don't want to see
but these little ones didn't seem to sting at all.

Sand Tilefish Malacanthus plumieri
There aren't too many places in the tropics where pure white is actually camouflage. Related northern Tilefishes live much deeper, beyond the range of divers.

A small coral head with a Tobaccofish Serranus tabacarius,
a kind of basslet, in front of a Giant Tube Sponge
Aplysina lacunosa. Black fingers in the background are
probably Common Bushy Soft Coral Plexaura homomalla.

Nearly the same scene, with the fish moved around.
Add a Chromis and some Damsels.

Sargassum Triggerfish Xanthichthys ringens
The three stripes on the cheek are the best identifying mark,
as the colors are otherwise variable.

Porkfish Anisotremus virginicus

Another Stoplight Parrotfish, with glorious colors.

The fearsome Damselfish again.

I get no respect. Who named these things, anyway?

Queen Parrotfish.Scarus vetula
Eatin' coral, and poopin' beach sand. Yep.
Does this mean it's ok for you to go bashing into it? Hardly. Always try not to touch or break the corals and sponges you see, but if you occasionally have to put a finger or two down on something solid, don't lose too much sleep over it.
I try never to touch anything on the reef because I don't know offhand which things sting and which ones don't, and some of them can really ruin your day !
* Not all ecologists are hysterical.

A brilliant Blue Tang. Photo is completely untouched.

My best guess is that these are baby Princess Parrotfish
Scarus taeniopterus, about 3" long.

Ocean Triggerfish Canthidermis sufflamen with Bar Jacks

Fire Worm Hermodice carunculata
Notice the tufts of white bristles underneath.
Leave this critter alone.
Thanks to Dr Matt Landau of
Stockton College Biology Department
for identifying many of these creatures.