condition mean min max 12pM Fe,Midday 45.2712 45.2712 45.2712 12pM Fe,Midnight 37.465149999999994 37.0134 37.9169 58pM Fe,Midday 34.1748 34.1748 34.1748 58pM Fe,Midnight 26.92312857142857 0.0 32.6801 233pM Fe,Midnight 37.78746666666667 36.7916 38.7562 1160pM Fe,Midday 25.336042857142857 23.1986 27.0657 1160pM Fe,Midnight 21.292458333333332 15.2991 29.3063 High carbon,Dark 36.2285 20.4874 57.4945 High carbon,Light 24.759429230769232 3.9777 41.0339 Low carbon,Dark 21.4495 21.4495 21.4495 Phloroglucinol 18.429433333333332 11.9307 27.9788 Silicon starvation,12h 40.6674 40.6674 40.6674