Yes you need to cut the worms into smaller peices into a small cup so there is blood sitting in the cup. Have your shrimp defrosted first and then cut a few small pieces off with scissors (way easier than a knife) into your cup. Then put the cup back in the refridgerator for 3 or more hours before feeding. Then when you feed take a little of your tank water in the cup and swirl it around to lossen everything and put in the tank. This is messy but works real well. Just remember to start with maybe only 1/4 of your shrimp to 3 canadian nightcrawlers (use canadian nightcrawlers because they contain alot more blood). You may find the shrimp gone after the first time or the ray may pick thru it. If it keeps picking thru it skip every second meal and try doing this. This way you don't have to starve your ray.
