Hi
One of my neons is looking a little ropey. It has lost weight, sunken tummy, cloudy eyes (both) and they seem to be swollen (well a little bigger than the other ones!) it's a little colourless too. It seems to be feeding ok and swimming fine.
All the water parameters are fine, I've just done a 20 litre water change, should I be medicating the tank for internal bacteria? And what should I do with the neon??
Please help
One of my neons is looking a little ropey. It has lost weight, sunken tummy, cloudy eyes (both) and they seem to be swollen (well a little bigger than the other ones!) it's a little colourless too. It seems to be feeding ok and swimming fine.

All the water parameters are fine, I've just done a 20 litre water change, should I be medicating the tank for internal bacteria? And what should I do with the neon??

Please help