Thread: Question: After removing coraline algae
View Single Post
  #2  
Old 02-02-2012, 12:24 AM
Hiab422's Avatar
Hiab422 Hiab422 is offline
Junior Member
  
Join Date: Feb 2011
Location: Abbotsford BC
Posts: 24
Hiab422 is on a distinguished road
Default
About the only way i can think of if it is calcium build up is clr but you sure don,t want to do that to a running tank.The other option is to use the finest wet sandpaper you can find very lightly rubbing the spot that is rough.
Reply With Quote