goldfish urgent help needed

[maddiemo]

I have two fantail goldfish which belong to ds4. Have noticed today that they are both struggling to swim downward and keep rising to the surface and turning on their sides.

I remember this happening with the goldfish I had as a child but not what caused it.

Any advice welcome

could be a thing called swim-bladder (i think!?) just going to check it....

Have a look here hopefully it will help you out

this one is probably better actually!! .......

Thanks very much Onzephyrstdayofxmas.

Swim Bladder sounds like the problem to me.

Sounds like swim bladder to me too......! Not sure if you can get medication???