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Old 05/22/2018, 10:02 AM   #1
D_Rock
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Cool Cyno Bacteria Outbreak

Hello All!

I went on vacation for 3 weeks and came back to a huge Cyno outbreak. I had a bit before I left but now it has taken over. My intial plan was to identify what chemical build up is causing it and then attack using organic methods.

However, I ran a test last night and I see no build of any sort! Parameters are listed below. I just did a water change and sucked up as mush as I could knowing it is going to come back.

Without a spike in any of my parameters and with no dead spots does anyone know what might be the culprit?

As of last night before water change
CA- 459
ALK - 5.8 (I usually dose for this and it is steady at 7.1 however I was on vacation)
Temp - 78
Salinity - 1.025
Mag - 1300
Phosphate - 0
Nitrate - 0 (not sure how this stayed at 0 while I was gone. I tested it 3 times)


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Old 05/22/2018, 11:20 AM   #2
bertoni
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Was there someone feeding or maintaining the tank while you were gone? I assume the tank has ATO?


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Old 05/22/2018, 12:15 PM   #3
D_Rock
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Hey Bertoni!

I did have someone feeding once a day. There was no maintenance done on the tank besides refilling the ATO.


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Old 05/22/2018, 04:27 PM   #4
Dan_P
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There should be a universal acknowlegement that you cannot deduce the cause of a cyanobacteria outbreak. The reason is that no one knows how to predict an outbreak.


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Old 05/22/2018, 10:44 PM   #5
bertoni
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I suspect someone overfed. I always used a feeder or just left the tank unfed after a couple of issues. Tanks often do better without us. We tend to overfeed.


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Old 05/23/2018, 08:07 AM   #6
D_Rock
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Funny you mention that! I actually just moved to feed only once a day instead of 2. Im hoping this might help with the cyno. Thank you for the feedback!


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Old 05/23/2018, 08:08 AM   #7
D_Rock
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I appreciate it! I dont think I was trying to predict it, just trying to identify what nutrient was access and then diminish that nutrient to control it better. It sure is ugly looking stuff lol!


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Old 05/23/2018, 11:20 PM   #8
bertoni
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Cyanobacteria is ugly, but it should go away on its own if the problem was a bit of extra food. If not, post back here and we can discuss some options.


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