Salt4Us
Aquarium Advice FINatic
I did a double take on this one, being that we do have Astrea snails in our tank, and some of the hermit crabs have Astrea shells, but when I saw the blue legs I just had to grab the camera. He is climbing up the back of the glass along the preskimmer box blew me away, I took the pic at an angle so you could see how far up he is.