blackmagic Posted February 11, 2011 Report Share Posted February 11, 2011 It is but for some reason it "unglues" algae so that the wind / rain will wash it away http://www.gardenjoy.co.uk/phostrogen/phos_algae_killer.htm It is not Phostrogen Plant food though, it is Phostrogen Algae Killer which is a different product. it is recommended for coastal regions. http://www.focusgarden.co.za/phosfaq.htm scroll down to find it. Link to comment Share on other sites More sharing options...
Ian Posted February 14, 2011 Report Share Posted February 14, 2011 It is not Phostrogen Plant food though, it is Phostrogen Algae Killer which is a different product. it is recommended for coastal regions. http://www.focusgard....za/phosfaq.htm scroll down to find it. I'm glad when I was told about this (but didn't bother reading fully) I didn't go off & try plant food then (I just use bleached water & a brush to clean off garden ornaments, garage wall etc) Link to comment Share on other sites More sharing options...
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