What Is This????

nudy6969

RUSTYS BROWN DOUGHNUT
DSC02491.jpg


started to form a week ago. its also on the back of the tank.
 
u cant really tell in the picture but there are some lite red/pink circles on the glass and at the back wall. coraline rite?
 
there are a lot of different kinds of coralline algae. It is all hard to scrape off. Get yourself a glass scraper and it will come off. It is really common.

-Doc
 
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