Well, I get home from work today and my CC star was on his back on the bottom of the tank. I tested everything and here is what I have...
77-78 degrees f
1.023-1.024 SG
8.0-8.1 PH
0 ammonia
0 nitrates
0 nitrites
5.5 meq/l alkalinity
15.4 dKH
The rest of the fish are swimming and looking vibrant. I found him on his back. When I fished him out his arms were stiff. I googled it and with the necrosis it was probably a bacterial infection. I'm nervous now that it may harm my other fishes. Could this be a problem???
EDIT: Sorry, I shouldn't have posted this here, but only put it here due to my earlier thread about cc's and coral.

Again, sorry.