Ptyodactylus are best kept in pairs, NOT in groups of one male with several females, at least in my experience. These geckos are VERY territorial. Solar Raptor bulbs would work, though an eco bulb such as Arcadia or Zoomed 10.0 would be fine.
Your terrarium is huge for a pair of Ptyos! In DYI centers (Leroy Merlin, and possibly Castorama), you can find what they call "pierres de parement" for walls INSIDE houses, it is about 15-20€ for a big pack. I use them in my Ptyodactylus terrarium, glued with silicon sealer for aquariums (silicone pour aquarium, en animalerie rayon aquariophilie), so you can "decorate" the walls of the terrarium with rocky surfaces inside the terrarium, if I'm clear for you. A 45x45x60 ExoTerra would be enough for 1:1, maybe you can keep your big terrarium for another reptile species? I have written a care sheet about Ptyodactylus in French on Les Dragons d'Asgard forum, maybe you can find it and use it. You need to be a registered user on this forum with 5 or more posts to see the care sheets.
They need a small bowl of water and sprayings 1-2 times a week with warm water inside the terrarium, no spraying at all in winter. Increasing temps stimulates breeding in Spring- I just change the basking bulb to a more powerful one (from 40 to 60 or 75 watts). Avoid buying from shops, imported animals are always full of parasites. The substrate is not really important as they almost never go on the ground, I use fine sand. I use pieces of "agglos/parpaings" as hides. A heat mat can be placed vertically outside the terrarium, behind the rear wall. I use a normal bulb (40 or 60-75W depending on seasons as I said) coupled to an Arcadia 10.0 UVB bulb and it works really fine. They will eat crickets (grillons) without problems, they like small locusts (criquets) and roaches (blattes) too. Don't give them superworms or mealworms (vers de farine et morios).
You will hear
Ptyodactylus often, they emit vocalizations quite similar to a small chirping bird. It is not a loud noise, so if you have them in your bedroom, it is not a problem. They glue their eggs on rocky surfaces, don't try to remove the eggs, either transfer the piece of rock to an incubator or leave the eggs incubate inside the terrarium, with a protection such as a piece of pantyhose (un morceau de collant) to protect the eggs from crickets (crickets can damage eggs) and when they hatch, from their parents.
I don't think I will go to Arras in June, but depending on where you live, I will have to go to Hamm either in June or in September, and if you live near Cambrai, Valenciennes or Amiens, this is the road I take. You can send me a private message if you need an arrangment with me
