stumbled across this and wanted to share.
they are made of textured ph neutral cement to attract the settlment of hard and soft corals
http://www.jasondecairestaylor.com/pages/gallery/latest-works.html
http://www.jasondecairestaylor.com/pages/gallery/evolucion-silenciosa.html
they are made of textured ph neutral cement to attract the settlment of hard and soft corals
http://www.jasondecairestaylor.com/pages/gallery/latest-works.html
http://www.jasondecairestaylor.com/pages/gallery/evolucion-silenciosa.html