condition mean min max 12pM Fe,Midday 0.724648 0.724648 0.724648 12pM Fe,Midnight 0.6233305 0.565204 0.681457 58pM Fe,Midday 0.427468 0.427468 0.427468 58pM Fe,Midnight 0.37787314285714285 0.0 0.653417 233pM Fe,Midnight 0.33983166666666664 0.336905 0.344124 1160pM Fe,Midday 0.43259714285714285 0.294135 0.611844 1160pM Fe,Midnight 0.15545039166666666 0.0476844 0.268326 High carbon,Dark 1.1012166 0.09571 2.50862 High carbon,Light 0.5091093 0.0 1.23121 Low carbon,Dark 0.785018 0.785018 0.785018 Phloroglucinol 0.8624776666666667 0.718965 1.02855 Silicon starvation,12h 0.343585 0.343585 0.343585