I also purchased ten more hermit crabs and ten more snails. Even though I only paid for ten of each the guy at Exotic Aquatics gave me about 20 or 25 crabs and about 15 snails. He also gave me an assortment of empty shells for the entrepreneuring crab that wants to move on up to a bigger shell.
One of the empty shells didn't turn out to be empty at all. It was home to what I think is a Christmas Tree Worm.
There was also a tiny Brittle Star hitchhiker no bigger than the the diameter of a pencil eraser from tip to tip in the bag of water. My youngest son spotted it and saved from what would've been a ride down the drain. We released him into the tank and he drifted until he, or she, was able to grab a rock. It then disappeared. I doubt we will ever see it again.
Today is day eight. Green algae is now starting to grow all over the glass. The brown algae seems to be slowing down but that may be due to the crabs turning over the live sand and the snails eating it off of the live rock.