The water consumption
for fish production in the present study was 0.020 m3 kg1 or
20.0 L kg1 when calculating from the following data on per tank
base: initial fish biomass 3.7 kg, overall average fish weight gain
43.9%, initial water volume 1000 L, water loss 3.3%. The other water
consumption data from previous studies are as the following:
extensive fish culture >5 m3 kg1 and semi-intensive fish culture
2.5m3 kg1 (both cited by Al-Hafedh et al., 2008), aquaponics by Al-
Hafedh et al. (2008) 0.32 m3 kg1 and aquaponics by Rakocy et al.
(1997) 0.25 m3 kg1.