my mate suggests checking his stomach for any dark spots; he thinks they're supposed to eat a little more than just once a week but he could be adjusting to a new environment as well. If it persists I'd be worried or if you start to notice that he's getting thin then definitely look into it, but for now i suggest just monitoring him for any major health changes. He could just be feeling out his new home!

he also wants to know what the setup of the tank is. What the bedding you use for the floor is, what size is the tank, what sort of heating element and what kind of hide-box.

Sure! Here's his current set up https://imgur.com/a/EgiZiQ4 I don't usually have the light on inside, just had it on for the pic.
He's got a make shift wet hide in the middle but I wan't to move it more to right on the warmer side. I'm currently using unscented paper towels for both outside and inside the wet hide.
I'm unsure what the tank size is exactly but I think it is a atleast a 20 gallon, It's an old one from a friend.

First off he's so gorgeous!! His colors are so pretty <3 I own 6 geckos, 3 of which I've bred and raised myself so here's just some info I have from my experience! I would get a slightly larger water bowl when ever possible since I do see mine drinking frequently. The wet hide should be fine and will definitely help with shedding. I would just keep a check on it to make sure no mold grows (depending on what you're using in the wet hide). I also see no problem with covering up the viv for darkness but I'm also a night owl and keep my lights on often and my geckos never seem to have a problem with it. Also I would move him when you vacuum more for the noise than anything. Whenever the orange part of his skin starts getting duller then that's usually a sign he's about to begin shed. Whenever he does shed, pay close attention to his toes and make sure the shed comes off. They also usually eat their shed just in case you were unaware haha

I actually don't use any uvb lights for mine and I've never had any problems and I've had my oldest pair for around 6 years. Paper towel is a fail proof substrate to use if you were unsure of that as well. As for the feeding part. He probably is just getting adjusted to his new home. I would get some butterworms or waxworms ( I wouldn't feed him over 2 since they are high in fat). My geckos usually will always go for those. Or possibly even hornworms if you can get your hands on those. Oh and keeping a bottle cap full of calcium powder in the viv is always good to have as well!

Hopefully that helped!! Sorry it was kind of all over the place

Thank you!! He's a super cutie, and wow! 6 geckos! even hand bred and raised, that's awesome o:
I have a couple of pics of his current set up https://imgur.com/a/EgiZiQ4 though I imagine I'd need to upgrade to a bigger one in the future.

Yeah I'm currently using paper towels, I was thinking of buying some reptile carpet when he's older. Though I've heard sometimes the quality of them can be bad and they get their little toes stuck?
I'll be sure to buy some calcium powder tomorrow, as well as see what kind of other food I can get him, butter or waxworms seem like a good idea to see if he'll eat. He has pooped twice now though after googling it, it didn't seem very formed, more of a brown mush and a white uric bit, it didn't look very pellet like. I don't know if this is due to him not eating much...

no no!! you helped a ton, thank you! <3

That is such a beautiful setup ohgosh. If it’s around a 20 gallon like you said in the previous comment then that’s honestly a good size for him. As for the reptile carpet, I’ve used it and hated it. My geckos would always get stuck and when i fed them they’d bite the carpet and their mouths would get stuck :(( And they absorb all the smells and are kinda pricey. Paper towel is really just the best in my opinion, easy clean up and inexpensive. But you could try it and love it so it’s just how you feel about it!

Also the poop is probably him not eating or possibly his age?

Oh and have you tried feeding him with tweezers? Geckos aren’t the brightest little guys, mine refuse to be anything other than tweezer fed a majority of the time lol

Thanks! I was afraid it'd be too small but glad to hear everything looks good c:
There's been abit of trial and error already, I bought eco earth and moss but the shop owner said I shouldn't use it, since they could eat it by accident. I guess I could see how reptile carpet goes heh, for now I'll be using the paper towels.

ah yes, I've tried to feed him with tweezers rubbing his mouth abit with the mealworm but he just licks it, I think he's abit nervous or just being picky at the moment haha