condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 0.0 0.0 0.0 233pM Fe 0.0 0.0 0.0 1160pM Fe 0.0 0.0 0.0 Dark 0.5379686666666667 0.0 1.0759373333333333 Light 0.3027797692307692 0.3027797692307692 0.3027797692307692 Phloroglucinol 0.0 0.0 0.0