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 0.02126206666666667 0.0 0.04252413333333334 Light 0.044650461538461535 0.044650461538461535 0.044650461538461535 Phloroglucinol 0.0 0.0 0.0