Mate I think cod will eat anything or at least attack it. I also think the full moon is a good time to fish for cod but not when the moon is showing. I fished an afternoon of the full moon a few years back and got a 90cm(my avatar), 80cm and half a dosen smaller fish, as soon as the moon light hit the water, the fish shut down, we fished for another hour or so, not a hit.
Scott