Treatment

ChlF ratio F690/F735

1) from aquarium

1.188 ± 0.012

2) from Al₂O₃ nanoparticles (in the dark)

1.531 ± 0.015

3) from Al₂O₃ nanoparticles (on the light)

1.318 ± 0.013

4) from distiller water

1.501 ± 0.014