Could be Graptoveria X 'Opalina' or similar hybrid... can't really get a feel for how large this plant is across. Is it 6" or more? If 3" only, could be just a Graptopetalum paraguayense

SouthEast Asia, Equatorial climate, about 33 degree Celsius during the day and about 28 degree Celsius in the evening. Initially, I put it outside during the day and indoor in the evening, then I've read it somewhere it should be kept in one condition only because they need to adapt to their environment. So I kept it outside now. Don't really know about winter because here basically the coldest day is when the raining season came, about 22 degree Celsius in the evening. The hottest day is during drought season, about 38 degree. It rain just a few hours ago, it hasn't rain for about a week or two.

I do not have photo right now, will ask for one & post. And I do not have any idea if it is leopard or not :) - sorry, I only buy things like lights & other stuff she needed. Looking at your photo not leopard. I am sure you would know, here is the photo when she got them couple of years ago:There is so little media in there for the succulents, you really need to watch watering. They need water, but shouldn't sit in wet muck. I believe that vivarium should be cleaned once in a while (? - is that correct?) so maybe you can rotate plants every time you do. Water them well just before going in, making sure all excess water drains away. Not sure how they will cope with extra humidity in the tank. Watch for any limpness, and also for any possible fungus (if very humid, they could have some). Hopefully you don't have to deal with that.

At the point in time when the root/ soil mass can be lifted from the pot intact (w/o crumbling) root congestion will have begun to exact a "tax" in the plant in terms of slower growth, lower vitality/ health, and likely eye appeal. The best strategies to deal with tight roots are, fully repot (most succulents) in May (if you live in the Northern Hemisphere), or divide and pot up the divisions, or start a new planting from cuttings when the vitality of plants in the planting begin to decline, or pot up (to a larger pot) well before the point in time when the root/ soil mass can be lifted from the pot intact. If the root/ soil mass is allowed at any time to become congested to the point where roots and soil are a homogeneous mass, the only way to relieve the congestion is by way of a full repot, dividing, or starting over from cuttings. Potting up cannot offer improvement beyond what the plant's normal growth would be, it can only allow the plant to temporarily return to a growth and vitality level slightly closer to what is normal for the plant. Potting up can never restore normal growth. It can be somewhat helpful, but nowhere near the other options that eliminate root congestion entirely. Al