I have a 110 with 2 ocelaris clowns a cleaner wrasse a purple tang blonde naso blue hippo mandarin goby cleaner shrimp 3 peppermint shrimp and only a handful of hermit crabs nassarius snails and cerith snails I know i need a bigger clean up crew and am going to get plenty more this week but wondering what I should get to help clean and aireate the sand bed? would tonga nassarius snails work or a sand sifting gobie? thanks