goldfish is freaking out

Question
hi. i have a 40l tank with 4 fancy goldfish and a black moore in it. My medium speckled goldfish has started freaking out - it looks like she is unable to sink. She is stuck at the top of the tank, floating on her side and flailing around trying to get down. What is wrong? What can I do?

Answer
hello alexie ummm it seems to me your fish has a swim bladder problem which is causing it to swim like that ...all i can say is let nature take its course and see what happens from there.

 hope this helps feel free to ask any other questions
meganna