White spots on glass?

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billy302

Aquarium Advice Apprentice
Joined
Feb 14, 2005
Messages
32
Location
Hanover Park, IL
I have several hundred white spots growing on my aquarium glass. Wondering if this could be the start of coraline growth or should I scrape it off?? they are fairly hard to get off? any ideas on what this could be???

Thanks

Bill
 
Probably spirorbid worms. They are like tiny spiral featherdusters. They are harmless but if you don't like them, just scrape them off.
 
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