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Old 03-19-2005, 05:26 PM   #1
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what kid of algae is this?

I've got some brown algae, slimy in consistency, not dusty. Only grows where the light hits the sand -- none in the tunnels / caves / etc. Also grows on the glass, but not on the LR (or is being cleaned off of the LR by inverts, maybe). Easily cleaned off of the glass with a soft sponge or vacuumed off of the sand bed.

Is this diatoms?
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Old 03-19-2005, 07:38 PM   #2
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Is this an established tank, or a still cycling one?

My guess is that it's diatoms. Normal, and will go away on their own.
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Old 03-20-2005, 12:20 AM   #3
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The cycle completed months ago -- the tank is several months old. I had diatoms that went along with the cycle & then disappeared, but now this. It looks somewhat different -- darker in color (but still brown) and more of a film-like coating, rather than dust-like.
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Old 03-20-2005, 07:40 AM   #4
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Cyano ? It is pretty slimy and turns a brownish to blackish color as it dies off.
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Old 03-20-2005, 03:26 PM   #5
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Yeah maybe... I'm just not sure. I vaccummed a lot of it out today. I just don't know what could be causing it... I don't over feed & I use only RO water...

It's not growing in the shaded areas... is cyano responsive to light like that?
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Old 03-20-2005, 03:31 PM   #6
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Look like this?
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Old 03-20-2005, 03:35 PM   #7
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Quote:
Originally Posted by XXFirefighter
Look like this?
Like what? No photo
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Old 03-20-2005, 03:43 PM   #8
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Quote:
Originally Posted by copi
Quote:
Originally Posted by XXFirefighter
Look like this?
Like what? No photo
Oops..
http://www.aquariumadvice.com/viewto...164&highlight=
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Old 03-20-2005, 03:54 PM   #9
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cyanobacteria is photosynthetic, yes.

how many hours a day are your lights on?
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Old 03-20-2005, 04:13 PM   #10
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Maaaybe... definitely not that bad. Also mine appears more brown than red. Maybe it really is just diatoms, or maybe a mix?
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