Suggested cleaner crew for a predator tank?

Hello all. Just wondering if anyone had any suggestions for adding a crew to a tank which houses Puffers, morray eel, and lionfish. All others are reef friendly but, these guys definately not. Even my astria's had to be removed due to my puffers. Does any one know of anything that will not be eaten by these guys. Of course I know that there are no guarantees, but would like to try, there is a tremendous amount of food going into the tank every day.

Thanks for any input.

i really can't see anything going in there, lions will fit anything they can get in there mouth puffers like hard shells, helps there teeth and and eel is the same as a lion. the only thing i can think of that might do any good is a cucumber, butttt if it dies your tank is going tooo

would a puffer eat a starfish?

they may not but i think you would have to get one of the sand sifting ones and then even i think you would need a few.

Thanks, thats about what I was thinking. And yes, the puffers will eat starfish. My serpant sea star is now in the basement setup with only clowns to contend with. While he is still "all there" he had quite a few nicks on his skin from the puffer going at him. All is well now.

I will just continue with my current process of cycling the rocks in other tanks.
Thanks again