mr.green has not tried to eat them, although i think he very well could. I am keeping him very full all the time. I figure he would rather have an easy smelt than fight a shark, but who knows. Thats why i bought the bamboo, that way the horn will be protected, and the bamboo will take the fall before the horn giving me time to save the horn. Expensive decoy fish but i had to get as close as possible. Mr.green kind of just shoves them around, and he gets jealous when they lay together so he gets his big head beside them lol!