The Free On-line Aquaculture Dictionary

EFA requirements as % of dry diets of some species
Species EFA (as a % of total diet)
Ayu  1% 18:3n-3
Coho Salmon 1% 18:3n-3 or 1% 20:5n-3
Common carp 1% 18:3n-3 + 1%18:2n-6
European eel 0.5%n-6 + 0.5% 18:3n-3
Macrobrachium n-6 requirement
Oreochromis niloticus 0.5-1% 18:2n-6 or 1% 20:4n-6
Penaeus n-3 requirement
Rainbow Trout 1% 18:3n-3 or 1% HUFAn-3
Red sea bream 0.5% - 2.0% HUFAn-3
Tilapia zillii 1% 18:2n-6 or 1% 20:4n-6
Turbot  0.6%-1% HUFAn-3