Sand Sifting?

We have Yellow Headed Sand Sifting Gobies and a Diamond Goby....both do exceptionally well at keeping the sand clean and sifted....tireless workers!
 
Blennys are not sand sifters, mainly just gobys and jawfish...I would not add either unless you have a VERY well established reef and a nice deep sandbed..Cerith snails are a good bet for sifting the sandbed..
 
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