Why are my fish swimming sideways?

[kwbear3]

I have an odd problem, i have 2 fish in my tank ( a 10 gal.) one is a glass fish and the other a danio, that are swimming sideways. I have 3 danios, 2 glass fish, 2 corydoras, 1 pleco and a betta. The danio has been digging holes in the gravel and rubbing her belly against the gravel. Both sideways fish have been hiding in one of her holes for about 24 hours. I cleaned the tank about 2 days ago, i need to buy another test kit so I'm not sure of any thing harmful in my tank and the last time i bought new fish was about 2 weeks ago. I don't think the 2 fish are doing very good, neither has really had an appetite and both have been very lethargic. Can anyone help me?

 

[David]

Obviously some type of stress-related disease. Did you recently acquire these fish? Maybe it was the transition that did it. Just wait a few days for things to settle down. Maybe you could also try adding some melafix.

 

[Vip]

Im thinking swim bladder.

 

[Puffer_freak]

Sometimes they lose orientation and they swim sideways, I think that is a sypton of swim bladder

 

[kwbear3]

i've had the danios about 5 months now and haven't had any problems with them until now and i bought the glass fish about 2 weeks ago. What's swim bladder?