I blend it all in the blender, blend up the shrimp brocolli and pea's (they make less mess if you shell them but it takes for ages) and used to blend the geletin through but it seems to make all the rest of it too fine for my big fish so I think ill lightly blend it and mix the geletin through from now on, you might be best to blend it while your fish are small, also chuck some garlic in for parasites