Spotting

Thanks Ashley for your suggestion but i saw with my eyes exactly this purple color. This is why i was amazed and i send it to the Noah community... What else to say, it was a little frog something like 5 cm, the temperature of the water was tepid, the photo was taken with the natural light of the sun because the cave was isolated but wide open (see all the green algae)...

No problem :) I agree with your suggestion too!

Aha, Ashley solved the mystery, thanks for explanation :) All the time I saw this frog as brown, as I know there's no purple frog with stripe along back and with patterns like has this one, I still think the suggestion is right...

Color doesn't mean much when it comes to amphibians. They change color depending on their temperature, and lots of times the camera changes the colors a little bit. The frog barely looks purple in this photo, I bet it's the camera that's doing that, but you can tell it's normally brown.

Yes Jopy, you are near, it's surely a Pelophylax but purple, i don't found anything on the net about it.... ??? Maybe it's only because i found it in a isolated cave and it eat some special algae with a special pigment ?

I think I'm wrong, I saw now that this is spotted in Turkey, sorry! will delete the ID and change it.

Thanks Jopy, but Edible Frog are only green, non ?

Purple frog with green line down it's back!