PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • You should purchase a water test kit that will test for ammonia, nitrites, nitrates and Ph such as this one Aquarium Water Testing: Aquarium Pharmaceuticals Freshwater Master Test Kit Your tank is cycled once your ammonia and nitrites readings stay at 0 and you have some reading for nitrates.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tropicalfishkeeping.com