Very interesting. Will have to study this up a bit. I figured the HydroCrunch would have a bit less absorption than some of the others, Odla, Cz, etc.
I believe you're accurate about the clay slip on the HydroCrunch. That was my thought when I bought first bag and noticed how smooth it was. I'd also noticed how much floatier it is. It's a PITA, but learned to appreciate that float factor especially when transitioning to SH. If one pots up to allow about an inch below top of pot, it really floats up and churns around a bit, effectively speeding up getting rid of debris from the roots that rot during transition.
The other thing I noticed was less absorption when I first started using it. It seemed to take a very long time to get better absorption within the pot when freshly potted. Now I leave a few gallons always soaking in RO, and use from it when potting/repotting. With the long presoaking it seems to be similar to the Odla or Hydroton absorption-wise from the get go.
All this is very non-scientific and just observation, but thought I'd put it out there anyway.
---------- Post added at 08:52 AM ---------- Previous post was at 08:51 AM ----------
PS Thank you very much for performing the tests Ray!
It's appreciated especially by those of us who grow mostly in SH.
Linear Mode
