i've noticed a lot of uneaten snails in the tank, i remove them before they foul the water
i've been considering adding in a couple (no more than 3) Khuli loaches, to help clean up the puffers "leftover" snails (or the ones they hunt for sport, take one bite of and leave to rot), however, i don't want the Khulis to see the shrimp as snacks, my Amanos range from adult size to 1" (and i just noticed a female packing eggs on her swimmerettes...), i'd imagine the adult Amanos would be safe, but the 1" ones i'd be concerned about
is this anything to worry about, or am i overreacting?

this is the tank in question...