Looking for thoughts/opinions on calcined clay sold under the brand name Turface. I noticed it being sold on some orchid sites and Ebay, and read how some are using it as part of a their media for Neps and Helis. I was able to find a local distributor and picked up two 55lb bags this weekend for what I thought was quite cheap. Interested in hearing if anyone has tried it. Also, I was considering using it as a top dressing for my Sarr mini bogs.
Thanks in advance for comments.