I eat salmon, mahi, swordfish etc. a few times a week, along with tuna of course.

I eat fish way more than chicken or beef...I get knida tired of that stuff quick. Not much bottom feeder though - crab, shrimp etc...

salmon is great as it's full of Fish oils rich in EPAs and DHAs and it tastes great

Sardines is a good one and cheap. Low mercury and pcp's compared to other fish. Good source of omegas. Very high in protein and other nutrients.

I should mention I have a can every day. I make a sandwich out of them.

I have salmon steak at least once a week. Great source of efa's.

Another good one to try, GA, are sardidines. (I think someone already mentioned) They are less expensive. The thing about sardines is you either like 'em or you hate them.