I didn't notice a Predator snail section, so, I found this black angel wing clam today for my local tank. Unfortunately, I also collected a Crown Conch. The clam hasn't been in the tank for 4 hours, and the conch is prying open dinner. I always wondered how a conch opened clams, better than any can opener. The conch pulls the clam down on its shell edge to pry the clam open. Again, the biggest reason to have a saltwater aquarium.