IIRC, you mentioned similar mix before and also wondered about it's water holding capacity; here is the answer: I do not know what is water holding capacity of Kanuma, but turface has water holding capacity of approx. 52% , so I would be surprised if plants are not getting enough in mix of these two?

Here is what Kevin said: Turface holds a huge amount of water. 50% is quite a lot, especially indoors. Careful not to over water those pots! Could be a little challenging to balance over and under watering with that mix.

According what you are saying above, your mix is: I'm currently using equal parts akadama, kanuma, and an absorbant clay like turface (that would make it 1/3rd of each).

IMO, it doesn't matter much what are the proportion; you are using very similar materials. I think that mix may be holding onto quite a bit of water. Water holding capacity of akadama (I have read that, comparing same grain size, it is similar to turface and higher than lava and pumice) is approx. 40% (from Kevins post); I do not know about kanuma but they are probably quite close...so mix of these, in any proportions, would have quite high water holding capacity. It will be even higher if grain size is small. Besides water holding capacity, total air porosity is also important.

Maybe you should measure kanuma, so you can judge.

I actually decreased amount of turface I am using to less than 1/3rd (10-20%), because IMO, mix was staying wet for too long. I believe Kevin has too - hope he will see your post and has some answers...or anyone else there familiar with those products.

Since we are in the same growing zone, here are my loft growing temperatures and humidity. Max/min for the past 24 hours:

If your Haworthia are recently received or repotted, perhaps the roots are not well established yet. Indoor temperatures normally are not a major issue when growing especially under natural light - usually people will adjust their thermostat or open the windows accordingly in the summer. If you are going for optimal temperatures and don't care about your electricity bill that's another matter...

Indoors I am watering roughly every 6 days. Outdoors I am watering every 3-5 days depending on the weather. It's been very stormy the past few weeks but this week has been very sunny and hot.

You can water a bit more although your plants do not look dehydrated to me. From this angle on the photo I can see that those odd shaped leaves you were asking about previously are pups

Vee - Cool! Did the kanuma come in a specific package? I might ask my friend to pick me up some from Kim's Nature (she is by there fairly often) just so I can do some tests or take a look.

Glad to hear you enjoyed Crystal Star. It's fun to stop by and chat with them. The succulent selection is pretty awesome.

My succulents have come from all over the place. =)

• Locally I got many from Sheridan Nurseries, Jade Gardens, Terra, Mississauga Greenhouse, Crystal Star Orchids, Van Dongen's in Pickering, and a few private growers.
• Across the continent, I've had a shipments from Valley Succulents in BC, trades in Quebec, and many from the USA.
• Internationally, I've had imports from Taiwan, South Africa, and Japan.
• Of course don't forget generous forum members and friends too!