I have a Gollum that is doing the same thing. I bought mine from Home Depot Feb 1, 2013 and repotted, dividing into 3 separate pots. Mine didn't have many roots, so I have only watered once, waiting for new growth to show. Last week I noticed the reptile skin getting worse, so I gave them a drink. I think they need another drink, the pots feel light to me. Two are in 3" clay pots and 1 in is plastic. They are in my spare bedroom, in a light stand. The bedroom gets cool at night, but not below 65. My soil is 1/2 C&S mix, 1/2 perlite and a little bit of small gritty pebbles. The link below goes to my post in February with a picture. Lennie in Michigan - waiting for the snow to stop. Here is a link that might be useful: My Gollum in February

Laurent - French Riviera (zone 9a) "Oksana, I don't know what a mono-led fixture is. I'm living in a mediterranean region (orange-tree climatic zone). I only keep inside the little Legolas and little variegated gollum + the variegated schlumbergera. The region is sunny enough to get them grow very well inside behind a window, without artificial lights." Laurent, a "mono-LED fixture" would be an light fixture containing LED light bulbs that are all of one color. For example, in Oksana's first set of pictures the plants are under an LED light fixture in which all of the LED lights are red in color. In the second photo, the LED lights are all blue. :-)

Rina- Wayyyy back (yest at 5:44 am haha) i had commented that Someone said the base of the Jade might be developing powdery mildew so I checked all the other plants and one entire side of the m.o.t. had white patches, and it was my fault bc i forgot to spin it, so I thought the two white problems could be related. Then someone asked what "forgot to spin it" meant. I was explaining to them I mean I forgot to turn it so one side got light and one didnt. The side without light was the side with the white patches. 'works like a charm, gimme the chemicals'... ...I was just lumping the organicide 3in1 in with chemicals bc I know you (and lots of other ppl) would say try a strong stream of water or wiping with alcohol or neem. I was actually thinking about it the other day "why does a sharp stream of water, neem, or alcohol rubs never work for me but seem to be everyone's first choice of treatment" and I thought that Maybe since I'm inexperienced i don't notice a problem until it's advanced so I need the big guns by then? Whatevs. Everyone says the Jade is fine and that's all that matters.

It could be mold - powdery mildew. Bathrooms are humid, and succulents are arid climate plants. Even if you have other plants not having same problem, it could be just question of time. There are other plants that would enjoy more humidity, but not succulents. Besides that, it is usually darker in bthrooms and succulents need lots of light. Looking at your photos, they are showing some etiolation. Leaves are growing too far apart because plants are not getting enough light.