What are the root causes of Cyano?

Discussion in 'Reef Chemistry by Randy Holmes-Farley' started by aeras1131, Nov 18, 2017.

  1. aeras1131

    aeras1131 Active Member

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    Hello All,
    I am curious what are the root causes of cyano. I have zero experience with it in my aquaria... *knocks on wood*. I want to avoid creating an aquarium environment that fosters the growth of cyano for the future.
     
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  2. EriksOasis

    EriksOasis Well-Known Member

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    From my experience and what others have experienced low flow and excess nutrients in the water have cause Cyanobacteria.
     
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  3. aeras1131

    aeras1131 Active Member

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    Ironically I did had super high nutrients and average flow. I have 2 of the large hydro korallia's on perpetually before I honed my approach to reef maintenance. Perhaps I got lucky. Currently, I do not have low flow or high nutrients by anyone's standards
     
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  4. Salty1962

    Salty1962 Wrasse and SPS Lover R2R Supporter Reef Squad R2R Excellence Award Build Thread Contributor Partner Member 2018

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    Low flow and nutrients;)
     
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  5. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    Unlike most "algae", many species of cyano can take up and get energy by metabolizing organics. So organics, whether added (such as vodka) or naturally present can drive the growth of cyano.

    Of course, it does also need nutrients in some form.
     
    Last edited: Nov 18, 2017
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  6. brandon429

    brandon429 why did you put a reef in that R2R Supporter R2R Excellence Award

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    Due to the outcomes collected I have the opinion the root cause of cyanobacteria invasions is doing opposite of what's done in the sand rinse thread :)
    total compliance there, variation elsewhere, im sold.
     
    Last edited: Nov 18, 2017
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  7. aeras1131

    aeras1131 Active Member

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    @brandon429 can you explain your statement. I do not 100% understand it.
     
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  8. reeferfoxx

    reeferfoxx Valuable Member R2R Supporter Reef Squad R2R Excellence Award Build Thread Contributor

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    He's saying, keep your sand bed stirred. When you go to scrape the glass, turn the sandbed with a baster or something and let the tank filter out. Then change out filter floss or filter sock.
     
  9. brandon429

    brandon429 why did you put a reef in that R2R Supporter R2R Excellence Award

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    Yes and to even go a step beyond when possible, see this gentleman’s interception page 3

    https://www.reef2reef.com/threads/simple-nano.230757/page-3

    No chems
    No tinkering with nutrient chasing

    Just rip the bed out, clean it, put back, handles all issues at once

    Our sandbed rinse thread is a collection of these events to show we simply can instantly stop cyano if the bed is accessible

    Hard to do in larger tanks vs nanos, but same outcome every time. We talk about and document how to take apart any reef tank, blast it clean, and reinstall without losing anything.
     
  10. aeras1131

    aeras1131 Active Member

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  11. brandon429

    brandon429 why did you put a reef in that R2R Supporter R2R Excellence Award

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    Thank you :) I feel bad it's only a handy trick for smaller tanks. Large tanks have the dosing toil and water adjustments + wait n hope nothing else bleaches. That guy tap waters his bed and opts out, once and done, ergo the only inference I can draw from that is anyone with cyano problems in a tank under forty gallons has no excuse.
     
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  12. brandon429

    brandon429 why did you put a reef in that R2R Supporter R2R Excellence Award

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    462C6596-7473-4848-BA59-BD506EA13456.jpeg
     
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  13. Cory

    Cory Valuable Member R2R Supporter Article Contributor

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    Cyano always grows on algae thats been dying in my tank and usually the algae has collected much particles of dirt. Or on top of organics in areas with low flow. Like a sandbed spot or in a corner.
     
  14. Berlibee

    Berlibee ReefHacks Team R2R Supporter Gold Sponsor Build Thread Contributor

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  15. brandon429

    brandon429 why did you put a reef in that R2R Supporter R2R Excellence Award

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    I really liked that. The bulk of the hobby still uses chemi clean on cyano, fact

    Her writing is sharp

    That's safe and repeatable info good article. I'm glad they didn't say one could not blast rinse the entire population out all at once, they left the door open to future action sets that may turn out ideal

    That blog is neat and well produced I'm def reading now
     
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  16. Hans-Werner

    Hans-Werner Active Member

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    In my experience when you look what has been changed before a cyanobacterial outbreak the phosphate concentration was lowered with organic additives, especially amino acids. Cyanobacteria can make direct use of amino acids. They seem superior to many other algae taking up phosphates from gravel and rocks and may cover hair algae that suppsedly leach phosphates they take up from rocks. One cause may be that corals have problems to grow with low phosphate concentrations and are bad competitors for trace metals and nitrogen under these conditions.
     
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  17. Cory

    Cory Valuable Member R2R Supporter Article Contributor

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    Oh yes and dont forget vodka!
     
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  18. lewis.maryann08

    lewis.maryann08 Active Member

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    Where can I find it to read?
     
  19. brandon429

    brandon429 why did you put a reef in that R2R Supporter R2R Excellence Award

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    Here we go
    https://www.reef2reef.com/threads/the-official-sand-rinse-thread-aka-one-against-many.230281/


    Since so many people were starting their tanks unnecessarily with cloudy water we quit doing that

    So many have to move tanks or houses, we choose that as an intercept point for detritus/rinsing and cyano removal


    Not everyone wants to rinse; natural is ideal. If it doesn’t work for whatever reason, we wanted a method to skip cycle rebuild after tearing into a tank, thanks for checking it out

    We never considered causes there, only the fixes
     
    Last edited: Nov 22, 2017
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  20. Lasse

    Lasse Valuable Member R2R Supporter Reef Squad Leader R2R Excellence Award Reef Tank 365 Build Thread Contributor

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    There is not a question what is starting a cyanobacteria bloom - the question is instead - what is making your normal benthic cyanobacteria to start building mats and hence make a bloom. The simply answer to that question is mostly nitrogen starvation.

    Sincerely Lasse
     
    Last edited: Nov 22, 2017
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