defects

Recently I’ve found 2 guppy fry in my tank that have very large stomachs and a red almost blood coloured line on the stomachs, I’m not sure what it is and can’t find an answer when I search for it. It looks like defect and it’s making it hard for them to swim. Any help would be appreciated.

Hi guys, My guppies have recently had some fry and about 2 (of 12) have defects with a slight bent back. I obviously don't want these to mature and continue breeding to pass on any defect, but I can't find anything online about what the best option is to kull them off. What do people tend to do...