About: http://webisa.webdatacommons.org/441528181

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	Using carbon in your filters is a personal preference and many people do not even use it except to remove medications or discoloration from tannins.
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com