Emperor angelfish: Gets into trouble by pecking at palythoas ... gets back out by devouring majanos.
Regal, majestic & flame angels: Peck at the rock and at nori on clips. Under evening blue lights, rise toward the surface to dance together.
Watanabe angel: Hits the nori, but leaves the rock alone. Eats anything she thinks she sees at the surface, ingesting air bubbles which come out later, at the other end of the fish.
Purple, Indian Ocean squaretail, yellow and kole tangs: Graze the rock and bang at the nori clip.
Quoy's parrotfish: Hits the rock, not the coral, smashes the nori clip. Moves fast across the tank.
Midas blenny: Slithers through the water column or tucks into the rocks.
Tailspot blennies: Tap away at the rocks and glass, tiff with one another.
Fairy wrasses: Cruise open water or pretend they're looking for 'pods on the rocks.
Mandarin pair: Actually look for 'pods on the rocks. Male flashes fancy fins at the female, especially in the evening.
Copperband butterfly fish: Probe for 'pods and Aiptasia on the rocks, examining each carefully.
Banggai cardinalfish: Hang in the water column, pretty far away from one another. After dark, they dash about devouring what they can or tussle with each other.
Aurora and orange-spot gobies: Attend to their pistol shrimp, occasionally rise to take something from the water column - including drifting shreds of nori.
Royal grammas: Hover with their bellies to the rock, in whatever orientation, sometimes flash open mouths to each other ... now that the female has made a reappearance!
Azure damselfish: Defend their favorite rock, court one another, snap particles from the water column.
Percula clownfish: Guard and tend their current plaque of eggs.
I might have missed some, but . . . yeah.
~B.
