Thread: Fungus on sun coral?
View Single Post
  #4  
Old 03-22-2014, 05:00 PM
Slyguy00's Avatar
Slyguy00 Slyguy00 is offline
Member
  
Join Date: Jul 2013
Location: Abbotsford
Posts: 1,141
Slyguy00 is on a distinguished road
Default
Its a sponge. And they are good for your tank. They help filter bad stuff out.
Reply With Quote