Any way to "mark" frogs?

[Monkey Business]

You keepers must have come up with some way to mark which frog is which in your enclosures. Unfortunately, they can look almost exactly alike if they are not heavily marked!

This would simplify record-keeping a lot. For example, keeping track of which are males after the nuptial pads fade.

OBVIOUSLY you cannot use permanent pen or anything else that they could absorb into the skin, and I don't see frogs accepting any kind of ID band.

Is this even possible, and has anyone figured it out?

[elly]

I just have to rely on careful observation. Fortunately one of my frogs has a dark mark and white's in general are prone to white freckles as they age so that helps.

Then again, I do not have a lot of frogs.

[Cliygh and Mia 2]

Other than looking at small size, color, and behavior differences, I don't think so. You could separate them so you know which frog is in which container, or you could just accept that you were probably looking at a different one each time, like I did. I kept mostly animals that had unique pattering for each animal, such as Leopard geckos, Fowler's toads, Cope's gray tree-frogs, ect. My Green tree-frogs were a different story however, I had to tell them apart by gender, (Had two males and one female, she was bigger, and always looked gravid, was planning on breeding her) who was more active, (One of the males called up a storm almost every night, guaranteed if a storm was in our area) and where they chose to sit. (One preferred to be at the top of the tank, while one preferred to be in the middle with the vines) It admittedly became slightly easier to tell them apart when the more active calling male got nose rub, because it left a scar so I knew it was him. Hope that helped!