condition mean min max 12pM Fe,Midday 68.0403 68.0403 68.0403 12pM Fe,Midnight 52.888450000000006 45.6983 60.0786 58pM Fe,Midday 42.8434 42.8434 42.8434 58pM Fe,Midnight 50.83982857142857 39.916 91.2732 233pM Fe,Midnight 32.990066666666664 30.0147 37.4165 1160pM Fe,Midday 31.365528571428573 26.5715 33.9825 1160pM Fe,Midnight 19.00085 14.5382 28.9021 High carbon,Dark 37.77454 12.6152 49.8286 High carbon,Light 23.01227769230769 6.84331 36.4895 Low carbon,Dark 23.7815 23.7815 23.7815 Phloroglucinol 43.7879 35.5566 53.7647 Silicon starvation,12h 29.3643 29.3643 29.3643