condition mean min max 12pM Fe,Midday 33.5491 33.5491 33.5491 12pM Fe,Midnight 18.8938 17.8224 19.9652 58pM Fe,Midday 23.7743 23.7743 23.7743 58pM Fe,Midnight 20.1977 12.6459 51.6287 233pM Fe,Midnight 13.0079 11.7708 13.8384 1160pM Fe,Midday 24.08637142857143 21.4595 26.1215 1160pM Fe,Midnight 11.408571666666667 6.42295 17.3246 High carbon,Dark 15.685425333333333 4.81823 25.4284 High carbon,Light 12.34697053846154 0.513007 28.7262 Low carbon,Dark 10.384 10.384 10.384 Phloroglucinol 32.4411 23.2979 45.7263 Silicon starvation,12h 22.0632 22.0632 22.0632