ID Treatment Temp Light Light_cycle Salinity pH_init pH_term Ctrl Control 17 120 12.00/12.00 30.2 8.08 8.35±0.00 Alk.L Low alkalinity 17 120 12.00/12.00 30.2 7.65 8.15±0.01 Alk.H High alkalinity 17 120 12.00/12.00 30.2 8.75 8.89±0.01 Irr.L Low irradiance 17 50 12.00/12.00 30.2 8.08 8.36±0.06 Irr.H High irradiance 17 490 12.00/12.00 30.2 8.08 8.40±0.04 Psu.L Low salinity 17 100 12.00/12.00 12.3 7.99 8.60±0.05 T.18 18 deg C 18 100 12.00/12.00 30.9 8.02 8.68±0.01 T.27 27 deg C 27 100 12.00/12.00 30.9 7.9 8.55±0.04 UV.ct UV filter outdoor 10.6(1) 715(2) 15.35/8.25 30.9 8.13 8.60±0.00 UV.tr No UV filter outdoor 10.6(1) 715(2) 15.35/8.25 30.9 8.13 8.59±0.04