I use Carlson's Liquid Fish Oil.
It's 1,600 Mg of Omega 3's per Tsp. ~ with 800 Mg EPA and 500 Mg DHA.
They also make an Elite Omega in caps that's 1,250 Mg & Regular Omega that's 1,000 Mg.................................. JP
P.S.
The Elite Caps are 400 Mg EPA & 300 Mg DHA
The Regular Caps are 300 mg EPA & 200 Mg DHA.