Closeups of Green Frogspawn Coral
in Augsburg College's Coral Reef Aquarium
(photos taken from above tank)
(photos taken October 13, 2000)
The first photo was taken under ordinary daytime tank lighting (6500K
metal halide plus supplemental actinic lighting).
The second photo was taken under just the blue actinic lighting (during
the dusk period after the metal halides switched off for the night) to
show this coral's brilliant green fluorescence.
