About: http://webisa.webdatacommons.org/411523530

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	I have read that the second chanber is for chemical media.Do I need chemical media, other than carbon?
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com