[Tom39]

Originally Posted by rvareef

How old/big is the tank? is the OS the biggest fish in the tank? Are you running a sandbed? Did you move anything around in the tank or add anything new? My orange shoulder likes to burrow in the sand near the rocks, and will move corals on the sanbed stirring it up, so maybe ammonia spike?

The tank is quite new at about 6 months. It cycled for 5 months and the fish have been in it for 1 month.
I would not say that the OS is the largest fish as there is a Yellow tang in there that is about the same size.
I am running a sandbed but I haven't moved anything in the tank, I haven't added anything and I have not seen my OS burrow. That would be cool to see if he did though. You should post a video of that, I would love to see that.
The 1st thing that I checked was ammonia and both test kits show nothing. I have a bit of nitrates but that is it.