Temps you should be getting up to 35-38 on the basking spot the reason why he just sleeps on the cold side could be due to the fact he isn't getting enough warmth to get active.
I use 4 ft melamine enclosures for a couple years and i am yet to have any issues other then sometimes the air can get a bit stale but when i take out one of my lizards to roam around i leave the enclosure door open to help air it out.
Reptile_Wooden_Terrarium.jpg
I have 2 little vents like this random image shows for the melamine enclosures, if you could post image(s) of the vent(s) can say if thats enough or not, see here for info on how to post images:
viewtopic.php?f=4&t=28657If it comes down to it and you are still concerned with the venting i would recommend along the top side or somewhere just getting a drill and doing a grid of drill holes to help with airflow
While newspaper is usable for bedding i would recommend going down to your local bunnings and getting some sugar mulch, cheap as and you get so much a single bag would last an enclosure dam near a year because it is compacted.
https://www.bunnings.com.au/sweet-garde ... h_p2961137As for the diet i would change that as well, while the Butternet, squash is part of a good staple it should be used in conjunction with some wet dog food aswell, fair few of us here use Pedigree it goes on sale for $1.50-2.50 for the 1.2kilo tin regularly at Coles, i use the 5 kinds of meat one mixed with the beef and gravy one, gives them a nice varied amount of meat and they absolutely love to lap up the gravy.
It's best if you get a cheap food processor from kmart or target, about $15-30 if memory serves when i got mine to use on the veggies and mix it about half and half with the dog food in a big batch and freeze it in easy ice cube trays, once its frozen just pop them out the tray and into freezer bags and then pop the next batch of food into the tray to freeze and repeat til its all done, doing it this way only have to prep the food a handful of times a
year.
Heres a good guide for diet
app.php/page/food-chart
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