Fry

[Fraoch]

they are deffinatly guppy fry

well i think so and harlequins and curiosity101 says they are

 

[OldMan47]

You need to be doing lots of water changes on the tank where the fry are located. Absolutely pristine water will go a long way to helping your damaged fry survive and thrive. Most of what you are seeing can often be traced back to not enough water changes.