condition mean min max 12pM Fe,Midday 38.5157 38.5157 38.5157 12pM Fe,Midnight 28.5124 27.0988 29.926 58pM Fe,Midday 41.6539 41.6539 41.6539 58pM Fe,Midnight 22.0405 0.0 31.4193 233pM Fe,Midnight 15.039966666666666 14.545 15.5314 1160pM Fe,Midday 21.49917142857143 18.0833 24.8339 1160pM Fe,Midnight 12.225386666666665 8.41606 18.5785 High carbon,Dark 15.952573333333333 11.027 23.3353 High carbon,Light 14.400668461538462 4.5542 25.8755 Low carbon,Dark 8.15303 8.15303 8.15303 Phloroglucinol 23.896866666666668 20.8984 26.4418 Silicon starvation,12h 17.1283 17.1283 17.1283