I've already got a handful of ceriths, enough nassarius snails that I couldn't even count them (probably somewhere between 10 and 30) and a fighting conch. While I'm sure they do a good job dealing with general detrius, My current issue is that I have black sand so anything that's not black really stands out. For example, my porcelain crab has lost both claws, which are laying in the sand. Other inverts have molted and parts just get kicked around down there and the biggest issue, the Tuxedo Urchin. Don't get me wrong, I love my Tuxedo urchin but it leaves rock dust all over the place. I can always tell where it's been while I'm out by looking at the trail of rock dust it's left behind.
What I'm hoping to find is something that'll mix that into the rest of the sand so it gets buried and isn't as much of a mess down there. I've read that a sea cucumber or sand sifting star may be the way to go, but I worry about them outgrowing the tank (40 breeder) or attaching other things. I though about getting another conch, but my concern is that there's not going to be enough to eat down there and they'll starve.
The other thing I've considered is a sand sifting goby. I initially stayed away from them because of the mess they make and in the mean time have picked up a firefish and pistol shrimp/high fin goby. They mostly stay to themselves, but I'm not sure if a 3rd goby would get along with two others (though I assume they would since they're not really competing for anything. Maybe I'm best off just getting a bunch more nassarius and cerith snails.
What I'm hoping to find is something that'll mix that into the rest of the sand so it gets buried and isn't as much of a mess down there. I've read that a sea cucumber or sand sifting star may be the way to go, but I worry about them outgrowing the tank (40 breeder) or attaching other things. I though about getting another conch, but my concern is that there's not going to be enough to eat down there and they'll starve.
The other thing I've considered is a sand sifting goby. I initially stayed away from them because of the mess they make and in the mean time have picked up a firefish and pistol shrimp/high fin goby. They mostly stay to themselves, but I'm not sure if a 3rd goby would get along with two others (though I assume they would since they're not really competing for anything. Maybe I'm best off just getting a bunch more nassarius and cerith snails.

