All day my Oscar has been openeing it's mouth really wide and shaking violently. He does it, stop for a few seconds...then goes again. All day. It is almost as if he is sneezing? What is happening? Will he be ok?? What should I do?? 
Oscar emergency!!! :(
- Thread starter Billjensen
- Start date
Who's he doing it to? My o use to do it to tankmates that got to close to him. Next time he does it look in his mouth to see if anything is cause him to do it frequently.
I dont see anything noticeable :/ he is still doing it though. I'm gonna tru to do a water change and see if it helps. Idk though
If you have a test kit or can take a sample to the LFS it never hurts to rule out water quality issues.
if you posted the pic of your avatar in front of your O i couldn't see why he wouldn't do it lol
Hey, Your oscar is getting very territorial and aggressive. Oscars are know for aggressively pushing against objects with there mouth open.
Is there another oscar in the tank because they might be guarding their nest. Or they are being aggressive towards you or tankmates.
What do you feed him because if you give him feeders it will raise his aggression BUT feeders are extremely bad for fish since they have no nutrients and they can carry harmful parasites that will kill your fish ( number one leader to HITH )
Is there another oscar in the tank because they might be guarding their nest. Or they are being aggressive towards you or tankmates.
What do you feed him because if you give him feeders it will raise his aggression BUT feeders are extremely bad for fish since they have no nutrients and they can carry harmful parasites that will kill your fish ( number one leader to HITH )