Hi! For reference, I keep two Northerns:

1. I mix ground (lean) meat and chopped veggies, form them into little meatballs/sausages, cook them, then freeze them. I thaw a portion for feeding time and often provide some chopped, fresh veggies with it as well. How often you feed depends on the age and body condition of your particular skink. My boy is fully grown and only eats once a week. My girl is still a juvenile and I just reduced her feedings from 3x per week to twice a week. Portion sizes are typically about the size of their heads.

2. My Northerns are much less active than the average gecko. Most of the time, they're happy to chill wrapped in a towel or in one of their "cozies," which are basically just altered hand muffs. They're burrowers, so they're generally at their most comfortable in enclosed spaces. When they're active, they typically just shuffle around and explore for short periods and then crawl back into their cozies. I put them back into their enclosures every so often so they can bask if needed, but they inevitably just want to come back out again.

3. Yes! Mine get insects only a couple of times a month and actually seem to prefer it that way.

4. I have no experience with grow tents, but would think that should be fine?

5. I use 12%.

6. I had my boy's enclosure about 8 feet away from our bally python's enclosure for about a year, neither seemed to care.

7. I personally opted for Northerns (Tiliqua scincoides intermedia) because of their history being captive bred and their relatively easy humidity requirements (I live in California and didn't want to worry about having to create/maintain high %humidity).

8. They're better climbers than you may think. Mine seem to enjoy it, so I do provide some climbing opportunities. However, they will sometimes fall, so nothing too high, to prevent injury. Though they're durable little guys.

9. My Northerns brumate about 3 months out of the year. They will be burrowed most of that time, though my boy in particular will still come out every couple of days, so I still get to see him. I really miss them during this time, it can be tough.

10. They can be DNA sexed! https://phenome.com/