Originally Posted by SDRiding
You didn't answer the question either
Why wouldn't you use it?
The OP posted that they already had ABG as a substrate, I don't see a need to discard this and set up with clay instead, starting from scratch your choice. I personally now use a mix of tree fern fiber, fine shredded orchid bark and charcoal, all over a bed of sphagnum. Variety of feeders and leaf litter to me is more important than substrate if you don't consider leaf litter part of the substrate. I would also advocate a variety of leaves in the leaf litter.