My 9 inch Aro was doing great. He was eating crickets then I got him to eat raw shrimp. A couple days ago, I got him some crickets again and he ate some of these. He seemed to stop eating when I started to sand the aquarium stand. My Wife wanted it cherry stained and it was oak stained. I sanded it with a orbital sander, primed it and stained it without draining the tank or anything. I kept a fan going and the tank was covered but sawdust was everywhere as well a fumes from the stain. I did a water change today and put new media along with carbon in the 2 Emperor 400's. I am also running a Rena XP3. I can hook up my Marineland Magnum if I find hoses to fit it. All the other fish are fine. The CK's are taking shrimp along with the Florida gar. I have tried shrimp, krill and Arowana pellets but Aro refuses to eat. Do I need to try some Epson salts. I added aquarium salt to the tank. Maybe tomorrow he will eat again. I hope I didn't hurt him by staining the stand. I did notice that his mouth fork is a little frayed. None of the fish liked it when I sanded the stand but i didn't have a choice.