Red Dot Or Gill Swollen On Fish

[omordn]

Hey Everyone,

I have encountered a problem with my Australian Rainbowfish. I have noticed that he/she has what it looks like a red dot on one of its gills. It could also mean that it is swollen therefore it looks like a red dot. I checked my water levels and they are fine. I have nothing toxic like ammonia, etc. I also looked into the ich problem because I was paranoid and thought that perhaps that could be it but no.. I soon realized that wasn't the case. Also, all of my other fish seem to be fine. My AR fish is the only one that does not look okay.

For your information, I cannot post a picture because I do not own a digital camera. Thank you all that help in advance.

 

[WILDER]

Any signs of flicking and rubbing or laboured breathing.
Red dots like pin pricks is septicmia.

Red spots on skin can be caused by:
Regarding the small red dot, small pinprick like haemorrhages (called petechiae) can be due to a local lesion, a generalised septicaemia or toxaemia caused by acute viral and bacterial infections.