PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Using a proper water test kit, an increased amount of ammonnia, nitrIte and/or nitrAte levels can commonly and easily be removed by water changes, but can also be removed with products, such as carbon, zeolite, nitrite/nitrate removers, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tropicalfishkeeping.com