someone please help. I have a preggers rosie barb, well I think, as she is very fat - in fact twice as wide as my other one. I thought they were both females!! I have put her in a plastic breeding tank on her own as she was hiding away above the filter. now I don't know what to do as I don't understand how the breeding process with barbs works. does the male need to fertilize the eggs?? please help as I think she may be getting stressed and the other barb is trying to get to her ???