Unknown gecko - Free living in the Tropenhalle

I noticed this green gecko of unknown species on one of the walls in the tropenhalle, sadly I was not able to get a photo of the back because of the angle, so it seems to be impossible to 100% ID it. But this should be either Koch's day gecko (Phelsuma kochi) or Greater Madagascar day gecko (Phelsuma grandis).

@Daniel Sörensen

I think it is a Madagascar day Gecko.

@German Zoo World Same!
Phelsuma grandis is marked as a former holding on zootierliste, while Koch's is listed as a current holding.
But as these are/were free living in the tropenhalle it's pretty much impossible to say when such species are 100% "gone". So a "normal" Phelsuma grandis is most likely the correct answer and that they still are present in the hall.