for the 3 next weeks was readjusted on the basis of this
control.
All tanks were cleaned daily by siphoning off accumulated waste
materials. During the experimental period, the water temperature
ranged from 27 to 29 °C, dissolved oxygen varied from 5 to 6.5 mg/L,
salinity ranged from 23 to 26‰, pH ranged from 7 to 8.