PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The advantage of better water contact time through the water channels is the undissolved organic waste can be removed more efficiently by the protein skimmer, while having a completely separate refugium channel that allows macro-algae to aid in the removal of ammonia, nitrates, phosphates and other unwanted nutrients that cause algae blooms and more.
http://www.w3.org/ns/prov#wasQuotedFrom
  • marinedepot.com