what's wrong with this FH ???

[didos]

[h=5]hello brothers
can you please spend 1 min to see this FH and tell whats wrong with it
http://www.youtube.com/watch?v=WDRue32-W1k&feature=youtu.be

i got 3 fish of this type from thailand all them exactly the same color , type and acting "
it go up and down by swimming only and don't stand in the middle of tank some said it is just stress on fish and others said it is swimming bladder in it's early states they are now 2 weeks in my tanks and eat very well mashalla but still acting like this
so please any reflection of your experience would be great thanks a lot[/h]

 

[the animal guy]

I would get internal parasite med. Simply "new" Parasite guard is what I would get to try and cure them

 

[didos]

bro do you mean it have disease in it's stomch not it's swimming bladder ?
and would an Antibiotic like tetracicline do the result or should i use what ?
thanks a lot