Advice?

[Clammie]

I noticed the other day one of my danios and one of my cherry barbs had HUGE bellies. I mean HUGE!
They seem to have gone down now.
They were both swimming just fine, eating just fine etc.
Could it be that they were constipated? (To put it bluntly)
Or maybe they were pregnant?
Or maybe just female (and I'm too paranoid)?
They're not 'showing' any signs of illness or strange behaviour.

Any help would be really appreciated.

 

[Inchworm]

Hi Clammie

I think you might be more likely to get advice in the Cyprinids, Characins and Atherinids section. I'll move your thread there for you.