Well according to my brother, it was a dried bloodworm, and when he put it back in the tank, the ramshorn ate it anywayIt's not bloodworms, they are red and thin and have legs on the front part of the body. They also live on the bottom of the tank.
No idea what the orange stuff is but it's interesting. Leave it in the tank and document it. You might have a cool orange algae or something else.