About: http://webisa.webdatacommons.org/157078737

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Examples of organic carbon in our tanks are fish poo, uneaten food, plants, dead fish, etc??? Activate carbon is a chemical filtration media.
http://www.w3.org/ns/prov#wasQuotedFrom	oscarfish.com