Neitehr the blood worms or brine will meet the nutritiional neeeds of the fish. Making a blender mush will be much better. You can thaw, rinse and add the cubes if you want. The addition of some garlic solution, selcon and vita-chem would also be beneficial. An algae product like Spirulina is good too.
Also, how often should I put sea weed strips in for my tang? I have been doing it every other day when I feed frozen. Should I put it in every day instead?
Daily would be ideal.