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 0.0031237125 0.0 0.006247425 Dark 0.008315653203333334 0.0 0.016631306406666668 Light 1.2167692307692308e-08 1.2167692307692308e-08 1.2167692307692308e-08 Phloroglucinol 0.000125292 0.000125292 0.000125292