PFP vs ADA
In SA we did not have loads of affordable substrates, one of the DIY substrates is to use palm fiber peat (PFP) add some nutrients and cap it with silica.
In 2012 I got my hands on some ADA ( local entrepreneur has decided to land some product) and did this little experiment.
The PFP vs ADA experiment was run over a 11 month period. Plants had a shared water column and sunlight was the light source. No CO2 was introduced.
ADA is the winner, based on overall development of leaf and root growth.