I'm all about the turkey baster, myself.

I blow the sand and rocks once or twice a week. I've done this since I've started keeping reef tank. I've never been a big proponent of the "set it and forget it" sand bed maintenance program. I love it when others take a proactive stance in maintaining their sand beds.

As you've stated, some creatures are good at keeping the sand bed clean. But always ask yourself, "at what cost." Keep the previous quote. in mind when buying sand bed creatures.

Conchs are not carnivores but rather detrivore feeders. As with all creatures though, they are opportunistic and re-decorators.

Enjoy your conch and let's see those pictures!

Christopher