condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 0.020383714285714286 0.0 0.04076742857142857 233pM Fe 0.0 0.0 0.0 1160pM Fe 0.0 0.0 0.0 Dark 0.0 0.0 0.0 Light 0.01566 0.01566 0.01566 Phloroglucinol 0.0 0.0 0.0