Found Blood on Paper Towel!

[Reptil]

In my Viper Gecko Cage i found a blood trail leading to one of the hides, i don't know who it was because i have 3 Vipers in there 1.2 and they all seem fine and active.I mean it looks like blood so i'm guessing it is because there is nothing red in the care that is a liquid.

Any ideas of what i could be?

Thanks
Chris

 

[PetVet]

Not sure if this helps at all but I started freaking out once bc I kept finding blood spots on my leo's paper towel. I found out the added fruit fly food medley I got for them, if added to water, turns blood red and the paper towels were absorbing and spreading it out. Not sure what you have in your tank but double check any food items...hope all is well for ya

 

[Reptil]

The only thing i feed the geckos are dubia roaches(babies) and the dubia just eat apples and oranges, nothing red in that. There i nothing that is red in the tank, it was either the dubia(doubt it) or the Vipers and i have a feeling it is the Geckos.

Thanks Any More ideas?