fish isnt behaving good

Question
hi i m cherry frm haarisburg.
i will b pleased n thankful to you if u answer my question soon.
i have a 30 gallon tank with 4 olden danio n 2 zebra danio.we set up tank few months back n cleaned twice but nw wat i saw is tht one of the zebra danio is nt in good body shape n behaves weirdly .its like moving in rolling position n the body is distorted but its alive but i dont knw wat the problem is n hw to cure it so plz answer me quickly i dnt want the fish to die.
i will b greatful to u
thnks a lot
cherry

Answer
Hello,

I had a little bit of trouble understanding your question, but I will try to answer it as best as I can. From what I gathered, your fish appears mishappen in some manner and is not swimming properly. I think this sounds like an internal problem, likely bacterial. I recommend a medicine called Maracyn-2, which can be bought at most pet stores. If you can't find it, aquarium safe tetracycline or triple sulfa may also work.

If I misunderstood your question and you would like to clarify, please feel free to get back to me. I hope this has helped.

Regards,
Stephanie