Please help Identify - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 8 Old 05-09-2008, 06:48 PM Thread Starter
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Please help Identify

I have these little hard white spiral spots on the back glass and all over the filtering system. I tried to take a pic but couldn't get a clear one. Can someone please help me identify them?
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post #2 of 8 Old 05-09-2008, 10:20 PM

I want to say Spirorbis. Resemble that at all?
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post #3 of 8 Old 05-10-2008, 06:14 PM
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I have those to, they almost look like some sort of casting, they are wierd and hard to scrape off. They are all over my thermometer and back glass, not the front, just the back side of the whole tank
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post #4 of 8 Old 05-10-2008, 06:20 PM
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yes i looked up Spirorbis Spirorbis and that looks like the species. It says they are worm that forms a calcerous shell. I couldn't find anything that said why they form in aquariums or if they are harmful. Does anyone know if they are harmful to an aquarium
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post #5 of 8 Old 05-10-2008, 06:53 PM
They are safe. They are filter feeders and form in dark areas in the tank such as corners or the back wall (as you are experiencing). It is pretty common and basically means your tank is going along well.
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post #6 of 8 Old 05-10-2008, 07:07 PM Thread Starter
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Thank you I have been very worried.
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post #7 of 8 Old 05-10-2008, 07:08 PM
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do they have any positive influence on an aquarium? I already scraped a lot of them off this morning
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post #8 of 8 Old 05-10-2008, 07:24 PM
Nothing that I know of. Just a good-progressing sign.
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