Gold Barb has a Distended Abdomen?

[Kascopic]

hi, I have this gold barb and have had him/her for a while now. I've noticed that he/she has a distended belly and I was wondering if this could be an issue. He/she is swimming fine and has never shown any symptoms other than the belly. They both are very active and voracious eaters so I haven't been worried about it but it would be nice to know what is causing it.

I was also wondering if someone could sex them for me? I've been wondering about this for a while

 

[Colin_T]

As long as the fish are eating well and swimming normally and doing normal poop, they are fine.
If they stop eating, swell up over night and do a stringy white poop, then it's an issue.

Gold barbs prefer to be in groups. If you only have 2 and the tank is big enough, you should get a few more so they have company. Try to quarantine any new fish for at least 2 weeks before adding them to your tank.