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Old 10-17-2018, 02:01 AM   #1
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Brown algae

In the last week my tank has been being consumed by brown algae. As far as I can tell there is no direct sun, and plenty of o2 in the water. Any suggestions on how to help eliminate it?
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Old 10-17-2018, 08:30 AM   #2
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A dusting of cyanobacteria. Increased flow and nutrient export will take care of things.
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Old 10-20-2018, 02:17 AM   #3
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Originally Posted by Sniperhank View Post
A dusting of cyanobacteria. Increased flow and nutrient export will take care of things.


Thanks you so much!
Super helpful!
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Old 10-20-2018, 09:47 AM   #4
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Keep in mind that nutrient export is important in our systems. Besides flow to assist with filtration to take care of uneaten food and poop, having 1 lbs per gallon of rock is very important as it is the basis of the biological filtration in our systems. Looking at the pictures it appears to be a tad short possibly.

Also, diatoms will also be a brown dusting you will see on your sandbed. You can tell the difference from the cyanobacteria you have as that cyano becomes 'slimy', which is why it is also known as red slime bacteria...even though cyano can be seen in brown, green... you get the idea.
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Old 10-22-2018, 12:59 PM   #5
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Cyanobacteria, AKA Red Slime Algae - Aquarium Advice
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Old 11-11-2018, 04:56 AM   #6
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I agree with the others cyano can be a bunch of different colors
Flow helped me i also covered the spots of rock with corals and that helped as well i also have a cleanup crew that moves the sand not letting anything grow there

What did you do and is it helping
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