I bought four goldfish three days ago. Now one of them is swimming around with its head vertically down, What's wrong and how do I fix it?

Answer by  malone (4817)

Your fish is sick, and probably was when you bought it. Isolate it from the other fish, then change the water for the others. Your fish may have worms, it may have an infection-something is causing its swim bladder to malfunction, hence the head falling forward.

Answer by  Justin23 (44)

Constipation may be to blame for what seems like your fish's Swim Bladder problem. Feed high quality goldfish pellets or flakes and do a 40% water change.

Answer by  susankk (20)

chances are that the fish is not adjusting to the new environment. They sometimes suffer a "shock" and you might have to add some chemicals to help him.I think I would separate him from the others and add the chemicals and see what happens. You wouldn't want him to infect the others by keeping him in the same bowl.

Answer by  FishGal88 (351)

Your fish may bbe constipated from a high protein diet, try fasting them for a day and feeding the ill fish an unsalted pea to help.

Answer by  Suzie57 (104)

That one fish was sick when you bought it. More likely, the level of toxins in your water are way too high. You should never add several fish at once.