> that green light doesn't penetrate water as well as other wavelengths As a diver that sounds weird. Red is the color that disappears quickly with depth. Blue

> that green light doesn't penetrate water as well as other wavelengths As a diver that sounds weird. Red is the color that disappears quickly with depth. Blue is preserved the most. Additionally, land based plants have had some serious time to change color if more energy was beneficial, which clearly must be the case?