My first reaction: over watered.

The plants hanging over the sides have lost most of the leaves and the stems are limp with dark spots - sign of over-watering.

Four other plants that are same looking (except the size) look like sempervivums. They are 'flat' and have many leaves yellowing with dark spots - sign of over-watering.

Plant in the middle is a cactus, looks like there is some yellowing on side oposite the flowers - but the photo is not good enough to be sure.

There is a chance that they were 'fried' - the symptoms are often similar; how long have they been in sun? How strong was the sun - how many hours a day?

Where are you located?

Dani,

What were they? Are those...jade cuttings?

Whatever they were, they're too wet. All of them.

I'd pull them all out and let them dry. I do not think they look sunburnt but what kind of light did you have? Soil?

And definitely get that cactus out! I don't know cacti very well, but I am pretty certain that is too wet. Lots of people here grow beautiful cacti so I'm sure someone can help you.

Once you tell us what those long hanging things are or were....W help you but get all of it out of that pot immediately. And unless they were supposed to be hanging plants....the stems are too long and damaged. You will probably have to cut them short once you revive them, if you can revive them.

Please take a photo of all the plants once you remove them from the soil, if you can.

Let us know and hang in there.

I acutally bought the hanging ones from a sale at CVS. They didn't have any identification on them but I also bought a Panda's ear that is doing just fine.

I let the soil dry out before I watered it, maybe I watered them a bit too much. I had set them outside in partial sun one day when it was nice and the hanging ones seemed to just struggle after that. I'm in MO, it's been nothing but humid and I tend to keep these guys inside.

Overwatered, wrong potting medium, not enough light...Best to do a little research on growing succulents indoors. It does take time and experience to get it right.

Christopher

too much water. best cut away any black spots/ bits or you will have a rot problem that can lead to fungus gnat.

yes I agreed with kaktuskris on the soil. these succulents don't need much I always get succulent/cactus mix and mix them again with 40% sand(any building sand or aquarium sand which looks prettier). don't water them until the soil dry out.

I don't recommend sand in any mixes since it tends to be very fine - especially for ppl with little or no experience growing succulents. I am sure many growers use the sand and grow great plants - but they know how/when to water. If I had to use it, I would at least sift it thru bug screen or use kitchen sieve and use only what stays in the sieve...JMO

I would rather add perlite and grit and keep the soil to 20% of total volume (I don't use soil any more but have some older pots with about 10-20%)

Keeping them inside may be insufficient light.