<http://webisa.webdatacommons.org/437982987>	<http://www.w3.org/ns/prov#value>	"I do not recommend using Excel in natural or low-tech tanks, as there is usually sufficient CO2 (carbon dioxide) from the fish and bacteria to balance the light and other nutrients." .
<http://webisa.webdatacommons.org/437982987>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<tropicalfishkeeping.com> .
<http://webisa.webdatacommons.org/prov/291938175>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/437982987> .
<http://webisa.webdatacommons.org/437982987>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .