condition mean min max 12pM Fe,Midday 41.4322 41.4322 41.4322 12pM Fe,Midnight 39.711349999999996 37.1917 42.231 58pM Fe,Midday 54.5751 54.5751 54.5751 58pM Fe,Midnight 50.745842857142854 37.9759 83.6852 233pM Fe,Midnight 61.522533333333335 61.0615 62.0202 1160pM Fe,Midday 22.0216 18.982 27.9168 1160pM Fe,Midnight 62.3257 34.3507 100.331 High carbon,Dark 96.25411333333334 32.5593 223.198 High carbon,Light 70.36552999999999 1.43498 199.291 Low carbon,Dark 26.2035 26.2035 26.2035 Phloroglucinol 32.46233333333333 19.4969 45.0682 Silicon starvation,12h 76.3464 76.3464 76.3464