About: http://webisa.webdatacommons.org/89192765

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	If you prefer the algae-free look, then a light scrubbing once a week should suffice but that depends on your lighting and general maintenance.To clean a DIY Styrofoam background, the best thing that I found is a soft bristle toothbrush.
http://www.w3.org/ns/prov#wasQuotedFrom	cichlid-forum.com