pencil urchin

I just received my order for my tiny nano tank and they sent me by mistake a large pencil urchin. Pick up today or it will die, I’m not putting it in my tiny tank. Willing to trade it for a mushroom or 2 or a small piece of pipe organ or photosynthetic gorgonian. Pick up in Ashland ASAP

Pickup at Tufts University. Most of these came from my 80g, kept ‘em as long as I could in my 10g but it’s too clean to keep them any longer. Willing to entertain trades. Hermits $1 ea - 2 blue leg, 1 red leg, 1 black leg (unsure of species) Emerald Crab $5 - 1 available, this fellow is always...