Oscar keeps opening his mouth .

[Joeybsmooth]

My Oscar keeps moving his mouth, like he is taking large bites out of something . But there is nothing there. So he is just like chopping on air.. well I guess chopping on water. Is this anything to worry about. He has had some stress. I had to issue with his tank so I had to place him in a smaller tank until I get get that issue fixed.

 

[Bichir Bro]

Possibly just typical Oscar shenanigans? Could also be something irritating his mouth causing him to do that. Try putting this in the cichlid section, more of our cichlid guys are more likely to see it.


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[PassengerTN]

How often is it happening? I catch my fish "yawning" quite often. Does it seem like a slow, relaxed typed thing or more like he's actually biting

Jesse

 

[Joeybsmooth]

Ok I will re-post in the other section... and it is like he is just slowly biting down over and over

 

[mikem691]

How small of a tank did you move him to? My hybrid does this every now and then. It could just be a little stressed or if the tank is way to small the ammonia and nitrites are going to build up fast which might be irritating him.

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[Joeybsmooth]

I think it must be the stress since I just put him in the other tank. So the levels would not be that high that fast.