Astrea snail

I added an astrea snail from my main nano tank. Diatom algae has begun to cover the live rock. The snail is bulldozing away the algae and leaving behind a trail of clean rock. Really neat to watch.

Polyps have all come out and are looking good. Crab changed shells.

And in other news, the emerald crab died mysteriously. It wasn't eating the bryopsis algae so it probably wasn't getting enough food. Now that it's gone, it will be interesting to see if the zoanthid colony begins to expand off its rock, which is compeltely covered.

- J
http://joshday.com