I think I have the answer here, but wanted to ask to make sure. I ordered two tuxedo urchins online and received them yesterday. Drip acclimated both at the same time over about 1.5-2 hours. One urchin is fine, the other is not. The one that is not fine... I noticed lots of spines (25%) in the shipping bag. Put him in a QT tank with food. Today the poor thing has lost 50-66% of it's spines. This one has not moved much at all. Tested my water to rule it out: pH: 8.1 or 8.2; not quite either color really SG: 1.024 Nitrate: 0 No copper treatment I think that is all that is important when it comes to inverts. I am thinking the tuxedo is done for and it happened during shipping given the number of spines in the bag. The question is: is there anything I can actually do for it or to I need to send it to the freezer to humanely put it out of it's misery? Just wish I could do something for it ... or need to end it fast so it won't suffer more than it already has.