I know this is an old thread, but information is information. Some succulents and cacti, I'd say most probably, can and will regenerate farina -- just usually not under the conditions it's going to find in a home. The epiticular wax is made by the plant to protect it from UV exposure and water loss (along with insects and bacteria and all sorts of other stuff, but those are the big ones). In a home growing environment most cacti and succulents barely get enough light to thrive, much less so much that they must protect themselves from it. Same with air movement -- nothing is going to re-create the winds of variable speed, direction, and humidity that they'll get outside. My advice is first, to treat cacti/succulents, especially those with delicate wax, systemically, especially if they'll never be outdoors in bloom. But when you have brushed/washed it off, or altered it in some way, you can try to encourage it to re-grow by giving your plant absolutely as much light as you possibly can, and gently water-stressing it. A room with low humidity and a fan, too, if you can manage it. Any stretch of time that it can spend outdoors will be huge; many of my graptoverias and what have you lost their farina during the Great Mealybug War of '19, but I put them outdoors in mostly-full sun for a good portion of the summer, and by the time I brought them back indoors you couldn't tell anything had ever happened to them, and not just from new growth.

Bernard - yours doesn't look like puill bug, but very unclear. save - that's why I said to google, since you have seen it 'up-close'. You are right, very difficult to take good photo, those things are very fast. I was to suggest that it is possibly one of the bugs that live happily in compost...there are billions of them! Bernard is on the right trail, springtails are compost lovers. They love moist conditions - exactly what happens under the pot (in the saucer). Springtails are soil micro-arthropods Springtails, or collembola, are primitive hexapods (six-legged arthropods) that are closely related to insects. These small critters (1-6 mm, usually less than 3 mm) live in soil, leaf litter, and other damp organic material. Springtails can be extremely abundant in some damp, highly organic soils. They generally cause no harm to garden plants but may be so abundant that they become a nuisance. Very occasionally they damage tender, young garden plants by feeding on roots. Springtails may be nearly colorless to white or gray and even yellow, orange, red, or green. The name "springtail" comes from an ability to spring forward, or jump, by releasing an appendage that is normally tucked under the abdomen (right, lower drawing). All stages except the egg are similar in shape. When springtails are abundant the cause is usually high soil moisture and/or highly organic soils. .................. In either case simply sweeping them up is the best strategy, no insecticide treatment is needed. Springtails won't breed indoors, except in houseplant soil, and won't cause any harm. Outdoors the "invasion" will stop once the rains cease and soils and leaf litter dry out. Treat houseplant soil by allowing it dry out between watering as well. From: springtails/collembola I have seen silverfish in damp saucer - they are common in moist areas (kit, bathrooms) in apartment building - they travel up & down...yucky, but won't harm you. Rina

Your water has dissolved minerals in it. When you water in small amounts, all the dissolved minerals in your water accumulate and remain in the soil. As more and more dissolved minerals accumulate in the soil solution (water in the soil) it becomes harder and harder for the plant to take up water. When you water, ideally you would add just enough water to saturate the soil, then return in a few minutes and water again so at least 15-20% of the total volume of water applied exits the drain hole. This most effectively flushes the accumulation of dissolved minerals (salts) out of the soil and makes it easier for the plant to take up water and nutrients. If you can't water this way w/o worrying the soil will remain soggy too long, you might want to consider changing to a soil that DOES allow you to water correctly w/o worry. Plants don't want measured amounts of water on a given schedule. They prefer to be watered as I described just before they get so dry that drought stress threatens to shut down their ability to grow, make food, and keep their systems in order. I'm not sure if any of this interests you or how much time you want to invest in learning more about plants, so I'll wait to see what you have to say. Al

Yes, I agree with chuckerfly about all said. Pls. do not confuse long, tall and skinny growth of succulent as good growth. It is etiolated = stretched, because is desperately trying to reach more light. That kind of growth makes plants weak (stem should be able to support itself), and loose proper color. These plants propagate very easily - just about every leaf will start growing 'babies'. It could be propagated from cuttings too. But new plants will not look any better unless you give them more light. When potting plant, pls. add more soil. Right now, it is potted too deep inside of pot.