Brown Green Algae? - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 05-31-2016, 07:08 PM Thread Starter
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Brown Green Algae?

Hi all,

Just wondering if anyone can identify this stuff on my sump glass and plants? See attached.

I think it may be green/brown algae but not sure. Is it a bad thing to have in the sump and if so, how to remove it efficiently?

Tia!
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post #2 of 4 (permalink) Old 05-31-2016, 09:08 PM
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The green color is throwing me off a bit. I get tan looking patches of it on
an aria of the glass where there is a good current on one of my 10g tanks.
Seems much better stuck on than regular GSA. Fairly hard to scrape off.
I've concluded that since it's in aria's where the current is best that it's
bio-film. That same tan looking appearance that ceramic nodules get on them
when in the filter. I only scrape it off the glass when it appears on the front glass.
That which is on the end glass where the current hits that end glass after coming
out of the filter discharge on the other end, well that can stay there.

The shortest distance between any two points is a straight line...in the opposite direction...
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post #3 of 4 (permalink) Old 05-31-2016, 10:32 PM Thread Starter
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I dont have it in the 400L display tank. Its only in the center section of my sump where I have plant substrate and small plants growing. It is a bit harder than green algae to clean off and I dont know whats causing it.
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post #4 of 4 (permalink) Old 05-31-2016, 11:00 PM
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I'd need to get a much closer look at it, but just from this picture it looks like
bio-film to me.
Till proven wrong, I wouldn't want it on the front glass of my tank(s) but I
believe it to be beneficial and I just ignore it other places in the tank(s).

The shortest distance between any two points is a straight line...in the opposite direction...
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