condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 1.8953799999999998 1.25214 2.53862 58pM Fe,Midday 1.07999 1.07999 1.07999 58pM Fe,Midnight 0.44590571428571424 0.0 1.08395 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.5703614285714286 0.0 1.95283 1160pM Fe,Midnight 0.1514945 0.0 0.940658 High carbon,Dark 1.202188 0.0 5.88163 High carbon,Light 4.903501538461539 0.0 36.8542 Low carbon,Dark 3.96666 3.96666 3.96666 Phloroglucinol 1.01976 0.0 3.05928 Silicon starvation,12h 2.08334 2.08334 2.08334