condition mean min max 12pM Fe,Midday 45.9716 45.9716 45.9716 12pM Fe,Midnight 46.667100000000005 40.0475 53.2867 58pM Fe,Midday 38.3006 38.3006 38.3006 58pM Fe,Midnight 31.996142857142857 0.0 44.0948 233pM Fe,Midnight 30.691333333333333 29.0528 33.8337 1160pM Fe,Midday 33.46542857142857 30.2457 35.4472 1160pM Fe,Midnight 11.02117 7.1859 16.3594 High carbon,Dark 26.02815933333333 6.15069 50.1894 High carbon,Light 24.21088307692308 2.81186 47.5848 Low carbon,Dark 32.5003 32.5003 32.5003 Phloroglucinol 22.070833333333333 13.8423 30.1002 Silicon starvation,12h 47.8969 47.8969 47.8969