oscar trouble???

Question
my oscar is 3 yrs old ,i put a dragon fish in the tank with it,now it stays crashed to the bottom ...its been 3 days,itll eat a little,but all other activity has ceased.including picking on the suckerfish...and sorting its rocks...i took the dragonfish out,is there anything more I can do?thanks!

Answer
Nicole-
Add aquarium salt.  It'll help destress the Oscar.  Give it awhile.  Dragonfish are terrors, and can be extremely intimidating to other fish.  Rearrange the furnishings in the tank as well.  Allow the Oscar to re-adapt if you will to a new area without the Dragonfish.  Good luck!