How to catch skinks?

[monster]

Hello, I don't know what Skinks eat but if you think he is in the vents maybe if you take something they eat that has some odour to it you could place a container of this food by an intake vent so it will suck the smell in. Maybe he will smell it and come looking for it. You could probably place a few containers or bowls by a couple different intake vents so he doesn't have to find that specific bowl or container.