marcus wrote:
X2 with the above questions. i would have thought swim bladder infection from what you say. any chance of a short video clip, that would give us the best picture of whats going on along with the answers as above.
if it is swim bladder infection i would waste No time and treat ASAP. its not always successful so early treatment is your best bet. your local pet dealer should do a suitable medication. you will need aquarium salt too. you could do a search, above right for more posts on swim bladder infection.
X3
Sounds like swimbladder. Curing this can be a bit hit and miss so start treating straight away and cross your finger. In the meantime answer the question and also do a 50% water change