I have place my succulent in a bright light with sun. I have not over watered it. the leaves on one of the succulents is falling off. The jade plant is fine.
Can you help?

Hi & welcome! I love that pretty pot. : )

That could happen from something bumping into the plant, getting too dry, or too much water in a pot without a drain hole. What do you think might be going on?

I think the plant you're asking about is this one:
Golden Sedum (Sedum adolphi)

Well the pot has a drain hole. I watered it last week and the top soil is dry but when I place my finger in deeper it feels like there is some moisture.

That's the problem with tall pots. The deeper you go down into the soil, the wetter it is. I think you have a little elephant bush, a jade and a graptopetalum (guesses). All can do with a drier environment but the 3rd plant losing its leaves... I agree with Tiffany, it looks like those leaves are being knocked off. Do you have a helpful kitty?

No but I might have knocked them off when I was testing the soil. that is the only thing I can think of. Thank you for your help.

That's the problem with tall pots. The deeper you go down into the soil, the wetter it is. That's true of any pot, no matter it's depth. What's misleading about the comment is it leaves people thinking deeper pots hold more excess water than shallow pots, but that isn't true.

Water held between soil particles, resisting the force of gravity and refusing to drain from the pot, is called "perched water". This is the water that limits oxygen and robs the plant of potential. For any given soil that holds perched water, the maximum ht of the perched water table is a constant, no matter the depth or shape of the pot. Most commercial potting media holds from 3-6" of perched water. That is to say that after a thorough watering, 3-6" of soil at the bottom of the pot would be 100% saturated.

So, if a grow medium supports 4" of perched water, the medium in a 4" deep pot will be 100% saturated. In an 8" deep pot it will be 50% saturated, and in a 16" deep pot it will be 25% saturated.

Which of the pots below would be easiest to grow in?

Obviously, it's the pot with the highest percentage of unsaturated soil, the tallest.

@kfalber No matter the depth of your pot, it's important to make sure your watering intervals are appropriate, and that requires knowing what moisture levels are at the bottom of the pot. A finger can't tell you that unless the pot is very shallow. For deeper pots, one of the most reliable methods of checking a planting's need for water is by using a 'tell' (more reliable than a 'moisture meter'. You can use a bamboo skewer in a pinch, but a wooden dowel rod of about 5/16" (75-85mm) works better. They usually come 48" (120cm) long and can usually be cut in half or in several pieces, depending on how deep your pots are. Sharpen both ends of each tell in a pencil sharpener and slightly blunt the tip so it's about the diameter of the head on a straight pin. Push the wooden tell deep into the soil. Don't worry, it won't harm the root system. If the plant is quite root-bound, you might need to try several places until you find one where you can push it all the way to the pot's bottom. Leave it a few seconds, then withdraw it and inspect the tip for moisture. For most plantings, withhold water until the tell's tip comes out nearly dry. If you see signs of wilting, adjust the interval between waterings so drought stress isn't a recurring issue.

Al

Al, you flatter me once again. Thank you for validating my contribution to this thread and thank you for your continued confidence in my abilities to spot the problem. You are a true team player and invaluable to NGA.

It could probably use more light, too. Direct sun for at least a few hours.