Have you tried this? Really ups the toothbrush game.
230 gallon tank, gets ~230 small cleanup crew. I like snails more than hermit crabs because the crabs sometimes eat the snails.
Something like this would make you not have to pick anything out.
Shop The Best Saltwater Aquarium Equipment & Supplies at Saltwater Aquarium. We Carry Everything you will Need for your Fish Tank.
www.saltwateraquarium.com
I've ordered from them and been happy before. I really like the fuzzy chitons, and they have pretty good selection if looking for specific things.
For hair algae control, my favorite is a rabbitfish.
If you are serious about qt for the inverts, it is just like any other qt in terms of time and a small tank but do not use copper as it will kill them all. I am not the qt expert so I don't know if you can use any meds. I am more of a let it ride kind of reefer, and the stories of cuc bringing a pest in do exist, but I feel are rare.