NZCHILECHINESE StrandsLarge, robust leaf and long stemDense leaf but short strandsFragile leaf and short strands StructureStrong structureReasonably strong structureWeak structure Chemical PropertiesNatural pH, 4.8 with an EC of 0.1mS/cm.Natural pH, 4.8 but inconsistent EC of between 0.1-0.5mS/cm.High pH and high EC Salt AccumulationWill hold onto nutrients for the plant but not accumulate harsh saltsPotential to accumulate salts when nutrients applied.Can easily accumulate salts when nutrients are applied AFPStrong structure means it won’t become over compacted in the pot.Dense leaf hugging stem means it may have lower AFP when compacted in the potProvides little air to the plant when compacted tightly in the pot ContaminationMinimal amounts of contamination dependant on gradeMinimal amounts of contamination dependant on gradeCan contain contaminants which break down quickly in the pot consuming nitrogen. Can effect plant growth and cause pathogenic problems. SterilitySterile substrate, protecting plants from pathogensGenerally a sterile substrate but can harbour Sporotrichosis (fungal pathogen to humans)Unsterile substrate; sterilisation is recommended before use due to a high level of contamination Logevity in potRobust nature allows it to last long time in the pot (4-5 years)Shorter, less robust strands and smaller leaf structure lessen the longevity in the pot (2-3 years)Due to contamination and the fragility of the moss it can break down very quickly (9-12 months)