If i can chime in for a minute....I am pretty new at rays myself so let me ask this, both my rays will pound down the blood worms, but I also get regular worms from my local bait shop and they love these as well. My question is...will my rays get he proper nutrition from just bloodworms and regular worms, or should they get different things like the shrimp or krill so i can be assured they are getting everything they need health wise.... hopefully this info will help others that are new at rays like myself. thanks in advance.....chris.