I have tried first a pair, then a trio and now a quartet.
I started out with a pair in a 30x45x30 exo terra. That worked fine, they got along fine. Then I just like you read about that they could be housed as trio's. And I read that in nature the males normally had a small harem on some sort of palm tree. So I decided to get a female more. That too worked out fine. Well the females worked out a pecking order and one of the females was mostly hanging out in the bottom half of the terrarium. So I decided that I would like a bigger terrarium, and went for a 60x60x45 exoterra.
When I moved the geckos into the much larger terrarium they really loved that added livingspace. They where much more active, and were not just hanging around at the top, but went down to the bottom to look for woodlice and so on.
Later on I had the opportunity to get a single female more.. I went for it. It didn't work out perfectly at first, but as it is now it seem somewhat ok. ofcause there are some arguments among the females, but they all tolerate each other and can hang out at the top at once.
I think I have been lucky with the temperaments of the females I got, but for now I have a working quartet that have produced 10-14 eggs from the 30th of december til now.
As for pictures of a setup I have attached a few of my main terrarium with the 1.3 L. williamsi in.
Front view, Left side, and Right side.
As for loose geckos I have had a few of them, but I am so lucky that my wife does not panic about it, I can even get her to help me catch them
This runaway gecko I knew was gone, or at least I was not able to see it in the terrarium for a whole evening (and I had already catched another runaway the same evening), but suddenly I noticed its little head pop out from behind a game of Trivial persuit right below the ceiling
Maybe you should tell your wife that if the geckos are loose it is actually an advantage for her - since they will be eating spiders and other small insects
For catching the geckos I use the deli box trick too(I normally catch them when they sit on the ceiling of the enclosure. Also small fishnets can be very usefull and catching them at night or in the morning before they are warm. For juveniles I have found that a deli box with dusted fruitflies in works wonders, they dive in to eat, but can't get up again due to calcium dust on the sides of the box.
