condition mean min max 12pM Fe,Midday 117.48 117.48 117.48 12pM Fe,Midnight 71.6613 67.582 75.7406 58pM Fe,Midday 88.0837 88.0837 88.0837 58pM Fe,Midnight 54.615542857142856 0.0 67.1633 233pM Fe,Midnight 49.6477 48.4319 50.8266 1160pM Fe,Midday 81.32171428571428 73.2354 89.4115 1160pM Fe,Midnight 55.649766666666665 37.6776 69.4544 High carbon,Dark 86.78096666666667 46.351 203.905 High carbon,Light 103.4112923076923 30.1641 244.637 Low carbon,Dark 67.7965 67.7965 67.7965 Phloroglucinol 141.579 138.386 145.77 Silicon starvation,12h 157.632 157.632 157.632