Colors by the Thousands - Light, Colors and Corals, Part I
http://www.advancedaquarist.com/2005/12/aafeature2/view



"StringerBell" wrote in message
...
I have a rock with button polyps. When I bought the rock , 2 polyps were
bright neon green---the rest kind of a dull brownish green. One of the more
drab polyps is now morphing. It`s about half dull and half bright neon.
How does this happen? Can you alter the color of corals by placement
vis-a-vis light?
thanks again
stringer