fish oils 3,6,9- which are a must???

[firsttimer22]

i currently have fish oil and it states this:

fish oil blend 1200mg
epa dha
total *****-3 fatty acids 300mg

is ***** 3 and 6, but i was wondering if i needed 9, or if i could drop the 6 and just take the 3 ? and suggestions?

also have read that people take up to 40g ED!!!
how do you scarf down that many pills, it gets so expensive!!

[kalspic]

3 is a must, 6 we get a lot in out foods so not so much(i think) and im pretty sure 9's can be synthasized by the body