Cyano

Discussion in 'Nuisance Algae' started by trad, 14 Aug 2008.

  1. trad

    trad Fish, thats the word!

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    Ok as far as i know Cyano it caused by Phos.


    Now Phos is caused by?

    Not skimming
    Detritus which settle in low flow areas and gravel
    or adding it via water, salt, food or ???



    Firstly is my understanding correct?
    Second does a RO unit remove Phos as far as i know it does.

    Reason i have increase my water changes in order to try clear up a cyano problem, which was minor and is now getting worse Why would it get worse this is bugging me so much.

    Was doing 20% water change monthly (4weeks) now doing 10% weekly using real ocean salt.
     
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  3. trad

    trad Thread Starter Fish, thats the word!

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  4. geoffrey

    geoffrey

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    you are correct.

    dude i had it bad. add live rock! lots of it, good quality, mine cleared in 2 days!

    just remember to increase or better, direct more flow to the problem area. flow is a big help!
     
  5. trad

    trad Thread Starter Fish, thats the word!

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    I have 72kgs LR and i think enough good flow.

    Warr has been helping me out a bit with this one and a couple of other guys just worried cause its getting worse.
     
  6. jacquesb

    jacquesb Retired Moderator

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    Also Trad - phosphates (and as such cyano) could be because of to much carbon based organic matter in the water. Cyano is a bacteria, which also contains photosynthetic cells. Therefor the feeding off both phosphates as well as carbon.

    Phosphates could be leached by hidden detritus within in the live rock.

    Also - a quick question: Do you dose white vinegar with your kalkwasser? How much? The cyano could be feeding off the white vinegar (a carbon source). Also, are you perhaps dosing vodka? Vodka is also a source of carbon (bacteria food).
    If yes to any of the two questions - please reduce these as well.... and then see what happens with the cyano bacteria.
     
  7. Furbz

    Furbz

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    i dose vodka... but not to my tank tho... :whistling:
    why would one does vodka of all things??
    keep the fish happy? :lol:
     
  8. trad

    trad Thread Starter Fish, thats the word!

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    Nope i don't add any carbon, not even active carbon?

    Is real ocean salt phosphate free?
     
  9. Midasblenny

    Midasblenny

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    Cyano has little to do with phosphates, more likely silicates as well as a low redox. Increasing flow will increase ORP as will a kalk stirrer which seems to sort out most cyano problems.
     
  10. bushwacker_69

    bushwacker_69

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    and if you dont have a kalk stirrer ...throwing in kalk with top up? will that help?
     
  11. Bob the (reef)builder

    Bob the (reef)builder

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    Possibly, I have found on every tank I've tried it on a Kalk stirrer on top-up gets rid of it. I think it just pushes up ORP.

    Try adding a slurry, it might help.

    I think what helps is the removal of CO2 that happens on addition of kalk.
     
  12. trad

    trad Thread Starter Fish, thats the word!

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    i've got a klak reactor and i still have the problem??? should i up the dose only giving 0ne teaspoon a week.
     
  13. Midasblenny

    Midasblenny

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    That sounds too little but would depend on type/amount of livestock, i add 10 heaped tablespoons a week but the system is full of fish and corals with a 2000litre water volume.
     
  14. trad

    trad Thread Starter Fish, thats the word!

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    Yip i increased it to 2 this week add it does seem to have helps. However i think when i have some cash i'm going to add a reactor for rowaphos
     
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