Ok. So over the past few weeks I've added 6 trochus snails, 10 blue leg hermits, 2 red leg hermits and 2 emeralds. They're pretty cool. They eat non-stop. I've started the water changes and the nitrates, nitrites and ammonia are all still 0. Now, I'm trying to decide on some sort of sand sifter. The guy at the lfs mentioned a cucumber and I think they're pretty cool but the releasing toxins thing kind of makes me nervous. My question is do they release enough toxins to worry about or should I shoot for something like a orange marked goby or something like that?

oh yeah. and I have "Caribsea Arag-Alive Special Grade Reef Sand". I don't know if that matters or not.