Chlorophyll content,, ,Hydrocoral surface area in square cm, ,UMc,BMc 1,1,0.07 2,1.8,1 3,0.8,1 ,663 nm, ,UMc,BMc 1,0.655,0.196 2,0.849,0.152 3,0.515,0.156 ,630 nm, ,UMc,BMc 1,0.226,0.119 2,0.288,0.078 3,0.187,0.079