condition mean min max 12pM Fe,Midday 0.0863308 0.0863308 0.0863308 12pM Fe,Midnight 74.9509 74.3066 75.5952 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 35.54075714285714 11.4098 61.3788 233pM Fe,Midnight 11.027433333333333 10.4892 12.0432 1160pM Fe,Midday 0.035737228571428574 0.0 0.113753 1160pM Fe,Midnight 6.142354166666666 2.1728 12.3991 High carbon,Dark 25.222762666666668 1.50512 50.2627 High carbon,Light 1.8846458461538462 0.0 5.31239 Low carbon,Dark 18.6578 18.6578 18.6578 Phloroglucinol 9.426713333333334 9.2506 9.5872 Silicon starvation,12h 39.8359 39.8359 39.8359