condition mean min max 12pM Fe,Midday 50.3363 50.3363 50.3363 12pM Fe,Midnight 209.112 179.827 238.397 58pM Fe,Midday 43.1552 43.1552 43.1552 58pM Fe,Midnight 230.81885714285713 182.301 278.143 233pM Fe,Midnight 165.52533333333332 160.515 174.286 1160pM Fe,Midday 179.79985714285715 151.078 218.712 1160pM Fe,Midnight 111.63383333333333 100.451 124.142 High carbon,Dark 162.66648 64.4852 258.233 High carbon,Light 194.21790769230768 44.8343 368.164 Low carbon,Dark 144.518 144.518 144.518 Phloroglucinol 75.1631 26.1204 108.992 Silicon starvation,12h 234.015 234.015 234.015