Hitchikers in the 30 gallon.
When we first set up the 30 gal. and put in the live rock we saw a small snail climbing up the glass wall of the tank, we haven't seen it since though. We figured that with the cycle and all, that we'd probably loose it. Last night, though, we saw some tiny bugs running all over the rock and a worm or something stick it's head or maybe an arm? up above the rock, you could see about an inch or so just kind of waving in the water. We also saw the head or an arm? come out and move along some of the rock. It looked like it had tiny rings on the part that we saw. We were surprised to see this life with the ammonia levels rising. Whatever it was is definately nocturnal. There are also a few tiny white worms, not moving, but clung to the side of the rock.