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Author Topic: Black fuzzy spots on tank decoration?  (Read 1214 times)
fishaddict23
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Black fuzzy spots on tank decoration?
« on: August 27, 2010, 07:15:58 PM »
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My fish tank is almost finished cycling and on just one decoration (It looks like a giant log but I'm pretty sure it's plastic) there are these fuzzy blackish spots   Huh  (fishless cycle)  Before when I had a green algae problem in my tank it was the only really tank decoration that got algae on it.  Does anyone know what it is and if it's bad how I should get rid of it?  Huh  Thanks in advance for any answers.
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Hanna
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Re: Black fuzzy spots on tank decoration?
« Reply #1 on: August 27, 2010, 09:10:53 PM »
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Algae come in all sorts of different colours. So it could be algae, but hard to tell without a pic.

Did you add "algae control" in your water too. Some conditioners control algae growth as well. How much light does your tank get?
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fish
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Re: Black fuzzy spots on tank decoration?
« Reply #2 on: August 27, 2010, 09:13:30 PM »
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Yes I did add algae control, but then I didn't add it again so when I saw this I did - It gets 8-12 hours of light a day
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fish
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Re: Black fuzzy spots on tank decoration?
« Reply #3 on: August 27, 2010, 09:14:14 PM »
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oops I'm on my sister's account   Wink
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Hanna
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Re: Black fuzzy spots on tank decoration?
« Reply #4 on: August 27, 2010, 09:22:47 PM »
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oops I'm on my sister's account   Wink

LOL, doesn't matter... haha... maybe you reduce the time to 8 hours only. Does the tank sit close to the window? what about direct sun light and how is the temp?
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Nossie
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Re: Black fuzzy spots on tank decoration?
« Reply #5 on: August 28, 2010, 01:43:20 AM »
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The light is perfect! Too much light usually gives rise to green algae (or brown, if there's a load of nitrates in the water). So all I'd do would be buying some plants or at most cleaning the "black fuzzy spots" off manually d:
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fishaddict23
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Re: Black fuzzy spots on tank decoration?
« Reply #6 on: August 28, 2010, 10:58:55 AM »
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ok thanks guys!  The tank isn't near the window and the temp is 80  Smiley
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fishaddict23
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Re: Black fuzzy spots on tank decoration?
« Reply #7 on: August 29, 2010, 01:43:00 PM »
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my tank just finished cycling  Grin

Could the spots be dangerous to new fish?  Should I try to clean them off?
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Nossie
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Re: Black fuzzy spots on tank decoration?
« Reply #8 on: August 31, 2010, 02:32:02 PM »
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No, it's just algae Smiley Don't worry Wink If there's anything strange in the water parameters, that's something to worry about, so as long as that's fine, your fish will be happy Smiley
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