u/Master-Animator3134

[supprimé]

Yesterday my oscar started this spinning. Hes also at the surface gasping so I did a water check and all is in line (0 ammonia, 0 nitrite, 10ppm nitrate, ph 7.4). I did a 50% water change with no changes to his behavior. Nothing new has been added to the tank and no feeding anything other than the usual pellets. What things can I look for and are there any other tests I can do.