I have a green tree frog. I believe it is a male because of the amount of croaking. I have had him for almost five years now. I don’t know how old he was when I got him. But I just found some red gooey/liquidy looking stuff in his tank. I’m guessing maybe it is bloody poop? It doesn’t have any form, and I found a couple of spots of it. It literally looks like thick sticky blood, but more liquidy. Does anybody know what this could be? He is still eating like normal and is at normal behavioral activity. He doesn’t have any color or skin changes. He does look slightly larger to me but I could be wrong about that one. Not fatter, just larger.

here is the stuff I’m talking about and there’s another picture in the comments.