Sand Sifters!!

I need one! A while back I bought a goby and loved watching him work!! But I got the feeling my sand bed is far too coarse, and he did eventually die of unknown causes. Is there a sifter that can handle a coarser sand bed? We have lots of little crawlers and I would love to introduce someone to a buffet. I am just starting to get back into my tank after I had mass death caused by a tang with ick. I basically need to start from the ground up as far as fish go. I do currently have a six line, but I love getting fish that will also help keep my tank healthy by just being in there. Any suggestions would be greatly appreciated!

EDIT: The reason I am asking is because I am finding small orange worms all throughout my bed. Everywhere. There are so, so many. They almost have a feathered head, but yeah. Tiny orange worms in my sand that I need gone. Also, 75 gallon tank