condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 3.356265e-07 0.0 6.71253e-07 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.0009227371428571429 0.0 0.00645916 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.0016396007701857142 0.0 0.00607241 1160pM Fe,Midnight 0.0 0.0 0.0 High carbon,Dark 0.4399861697333333 0.0 1.85647 High carbon,Light 0.235 0.0 1.87231 Low carbon,Dark 1.37412 1.37412 1.37412 Phloroglucinol 0.95108 0.0 1.6697 Silicon starvation,12h 0.0 0.0 0.0