About: http://webisa.webdatacommons.org/88977864

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	Plants use ammonium from ammonia produced by the fish, but there is a limit as to how much ammonium/ammonia, so best be on the safe side.
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com