About: http://webisa.webdatacommons.org/276637705

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	he is what I mean is that having test kits for gH and kH is helpful, especially if your pH starts to fluctuate.
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com