About: http://webisa.webdatacommons.org/168599103

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	High nitrates over a long period of time will have toxic effects, stunting the fish's growth, and causing internal damage, shortening the life of the animal and causing problems along the way, such as the tumors you have described.
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com