What are clean up crew which you would recommend for the sand bed? I am looking for ones that won't topple any of my rock work or frags. My scape is sittig on the sand bed but, most of it is flat.
Nassarius snails are great for the sand bed and are unlikely to topple anything. If you have a big tank, you might also consider a sand sifting starfish or two.
I like the dwarf zebra hermit crabs. They stay a little on the smaller side and don’t tend to try to take food from corals. They clean the sand bed and rock work but don’t disrupt frags or corals.
