Cyanobacteria

JohnG123

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Hi,
Have had a tank set up running for 4 years now but a month ago have had a growth of red slime algae which I believe is called Cyanobacteria. Have tried manual removal but no luck. All tests are normal and doing regular water changes. Any ideas?
 

gbroadbridge

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Hi,
Have had a tank set up running for 4 years now but a month ago have had a growth of red slime algae which I believe is called Cyanobacteria. Have tried manual removal but no luck. All tests are normal and doing regular water changes. Any ideas?
Do you have a photo under white light?

Also Nitrate and Phosphate measurements?

Are there bubbles attached?
 

Dan_P

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Hi,
Have had a tank set up running for 4 years now but a month ago have had a growth of red slime algae which I believe is called Cyanobacteria. Have tried manual removal but no luck. All tests are normal and doing regular water changes. Any ideas?
Not much to go on. How long ago did you first see a red blush? Where is it growing?

You could use ChemiClean or you could try tweaking water parameters.
 
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JohnG123

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Do you have a photo under white light?

Also Nitrate and Phosphate measurements?

Are there bubbles attached?
Have to wait 3 hours for the lights to come on. Phosphate 0.05 Nitrate 0. Some air bubbles on the rocks.
 

gbroadbridge

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Have to wait 3 hours for the lights to come on. Phosphate 0.05 Nitrate 0. Some air bubbles on the rocks.
I'd bring the nitrate up to about 5 ppm, vacuum out daily and increase flow.

It should clear up on its own In a week or so.

The Phosphate levels are fine.

You could use something like Chemiclean if you wish to go the chemical route.
 
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JohnG123

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I'd bring the nitrate up to about 5 ppm, vacuum out daily and increase flow.

It should clear up on its own In a week or so.

The Phosphate levels are fine.

You could use something like Chemiclean if you wish to go the chemical route.
Thanks
 

IslandLifeReef

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I have been advised to use Cyno solution to get rid of the Cyno??

Be careful using things like chemclean or cyano solution. These products kill bacteria. They don’t discriminate, so they can also kill good bacteria. I would only use these as a last resort. Try getting your NO3 up and vacuuming out the cyano. Cyano can also,thrive if there is a lot of dissolved organics in the water or accumulating in the substrate.
 

Subsea

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Be careful using things like chemclean or cyano solution. These products kill bacteria. They don’t discriminate, so they can also kill good bacteria. I would only use these as a last resort. Try getting your NO3 up and vacuuming out the cyano. Cyano can also,thrive if there is a lot of dissolved organics in the water or accumulating in the substrate.
ChemiClean is a gram negative bacteria probiotic. It does discriminate and it does work when directions are followed.
 

IslandLifeReef

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ChemiClean is a gram negative bacteria probiotic. It does discriminate and it does work when directions are followed.
So are you saying that Chemiclean will only kill the bacteria that causes Cyano and nothing else? I am not an expert in that field and would like to know.
 

EeyoreIsMySpiritAnimal

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ChemiClean is a gram negative bacteria probiotic. It does discriminate and it does work when directions are followed.
It's an antibiotic - erythromycin. It affects gram negative bacteria.
 
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EeyoreIsMySpiritAnimal

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So are you saying that Chemiclean will only kill the bacteria that causes Cyano and nothing else? I am not an expert in that field and would like to know.
No. It will affect other gram negative bacteria as well, including BB (beneficial bacteria).

Found on another forum:
"Erythromycin is a potent antibiotic that will affect many strains of bacteria, including nitrifying bacteria. Antibiotics do not "kill" bacteria. They interfere with the reproductive process so the bacteria cannot replicate. Thus, they eventually die out."
 

Subsea

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No. It will affect other gram negative bacteria as well, including BB (beneficial bacteria).

Found on another forum:
"Erythromycin is a potent antibiotic that will affect many strains of bacteria, including nitrifying bacteria. Antibiotics do not "kill" bacteria. They interfere with the reproductive process so the bacteria cannot replicate. Thus, they eventually die out."

Not to diminish what someone said on another forum, I prefer to base my information source on documentation. I think what @Randy Holmes-Farley said here is pragmatic. He has used it. He thinks some Cynobacteria in a reef tank is not a bad thing. Yes, ChemiClean has “some” Erythromycin in it. In large enough doses, erythromycin kills other bacteria.

 
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JohnG123

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Not to diminish what someone said on another forum, I prefer to base my information source on documentation. I think what @Randy Holmes-Farley said here is pragmatic. He has used it. He thinks some Cynobacteria in a reef tank is not a bad thing. Yes, ChemiClean has “some” Erythromycin in it. In large enough doses, erythromycin kills other bacteria.

Sorry but I didn’t understand your answer. Is it safe to use Cyno Solution?
 

Subsea

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Sorry but I didn’t understand your answer. Is it safe to use Cyno Solution?

Could you take a picture using white light, to illustrate how bad of a Cynobacteria problem you have. I have used ChemiClean when required.

Note Cynobacteria between glass and substrate. This sandbed is 25 years mature.
 

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