No fine particles of any kind, they're likely to clog up the mix & impede watering & aeration of roots. Sans are plants unlikely to need special soil amendments. They're one of the few plants I use recycled mix for.

The wrinkling is most likely a symptom of plain thirst, has nothing to do w/ root rot.

I'd use ordinary cactus & succulent mix, w/ 50% added perlite & pot them up, wait 2 days to water well, 'til lots of water comes out the bottom. Wait a few minutes & pour off the excess water.

If you do use the Coir, make sure it's rinsed, I hear it often comes salted & needs rinsing first.

Don't know what rock dust is, nor what its purpose would be.

agreed, thirst. repot in cactus mix and water. wrinkles will disappear once hydrated.

I agree with the good advise. Also noticed some dead central leaves. Also stressed plant producing strange variegations in some leaves. Plants were neglected for a while.

Stush

Appreciate the feedback everyone.

Rock dust meaning something
like Azomite or Excellertie for added minerals. The coco-coir is from
Cosmic Coir which is very clean.

When you say dead central leaves, do you mean like this? This is another I have.

jameshinton83's ideas · More Info

Thats' not what I saw. This kind is from a virus or fungus from a injury to the leaf. I though I saw the central bud leaf dead. Which could mean crown rot. Some times just lack of water.