condition mean min max 12pM Fe,Midday 15.4 15.4 15.4 12pM Fe,Midnight 19.527299999999997 19.2185 19.8361 58pM Fe,Midday 11.2041 11.2041 11.2041 58pM Fe,Midnight 13.351785714285715 0.0 19.1473 233pM Fe,Midnight 13.301866666666667 12.0921 14.8122 1160pM Fe,Midday 6.189747142857143 4.0453 7.88747 1160pM Fe,Midnight 10.502310833333333 8.24271 12.5915 High carbon,Dark 12.172994666666668 4.28474 30.6456 High carbon,Light 5.467993615384615 0.480067 18.0702 Low carbon,Dark 6.11709 6.11709 6.11709 Phloroglucinol 8.896256666666666 6.32615 12.3573 Silicon starvation,12h 15.5771 15.5771 15.5771