Hard to tell. The pic would appear to be upside down.

Josh

Is it indoors? It is winter so they probably are dormant. Which means water them every 2 or 3 weeks at the earliest.

I think thats not the problem still, its that its indoors. I have 2 small semps, a little smaller than urs, that look the same. I hardy water them. But all my semps outside in the -20c weather look very happy. Semps dont do well indoors it seems.

Still, Im not sure whats the real cause. Lets wait for a pro to answer :)

When people say "hen & chicks", I think of Sempervivums. But Echeveria are sometimes called that as well. Your plant looks like an Echeveria to me, perhaps E. derenbergii (or 'Dondo', maybe). It is normal for the lower leaves to dry up. The soil you have it in, looks mostly organic. It would probably do better in something that would drain well. Even though it's winter (I see you're in zone 6--wherever that is), it still could use a bit of water. People who live in the same climate as you can chime in here as to how they care for plants.

Sempervivums are more hardy than Echeveria. I would give it as much sun as possible (or lights).

I have never had this happen I have some semps I think this was one once Opon a time but now it's deformed :( want to see the entire succulent aria?

Yes, please show us more.

This is my temp terrarium for the winter in the summer I'm going to pot these up or plant the harty ones in the ground.(more succulents I have are alo, jade, and a few sans)

The plant in the bottom right of the pic appears to be a cactus to me.

it is a cactus

Michael, you said you had other Sempervivum. Are they in this pic? A few of those look like Echeveria. Do they have any cilia (hairs) on the sides of the leaves?

Hmm i don't know I thought I only had 1 echeveria in this and the rest were semps stonecrop panda plant or aeonium

How did the cactus get into your terrarium?
Was it a volunteer that came in the soil ?

Okay, I see all those plants you mention, but I'm thinking the ones you think are Sempervivum may be Echeveria as well. Maybe not. I would need to see closer pix of those to determine if so.

This is your temporary home for them for the winter, right? I think all would've done better in separate pots. I still think your 1st plant pictured needs a bit of water.

Are there hairs on the edges of the leaves of the ones you think are Semps?

i agree they all needed to be in seperate pots but most of the plants i got on an impulse at different times so i stuck them in the terrarium like the cactus. i will get you a close up picture later k :)