condition mean min max 12pM Fe,Midday 0.947492 0.947492 0.947492 12pM Fe,Midnight 0.980353 0.729016 1.23169 58pM Fe,Midday 0.419193 0.419193 0.419193 58pM Fe,Midnight 0.9596721428571429 0.0 1.65738 233pM Fe,Midnight 0.9846940000000001 0.599932 1.32153 1160pM Fe,Midday 0.9800575714285714 0.769174 1.32647 1160pM Fe,Midnight 0.2513375 0.0 0.571309 High carbon,Dark 1.8437707333333333 0.456654 5.14059 High carbon,Light 0.6500693846153847 0.0 3.12344 Low carbon,Dark 1.53964 1.53964 1.53964 Phloroglucinol 0.948913 0.0 2.09796 Silicon starvation,12h 0.808641 0.808641 0.808641