im on the fence about cleanup crews, not only do they die easily but they also leave there shells in the sand and at times in your check valves

i have my 180 gallon with absolutely no crabs, snails, urchins, to clean. i feel like they cause more issues, cleaning manually and having a great fish crew to clean is (to me) the easy way to do it. also i have noticed more dead hermits and snails in my previous tanks during the cycling period so its just like adding the fish in unstable water. but try whats best for you