Please help identify this algae

Discussion in 'Nuisance Algae' started by brentnorm, 10 Apr 2009.

  1. brentnorm

    brentnorm

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    This dark green algae has started growing recently. Can you please identify and help how I should get rid of it ?

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  3. Mike

    Mike Retired Moderator

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    Brent, not seen that before, what are your perameters? and what are the perameters of your water change water?
     
  4. brentnorm

    brentnorm Thread Starter

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    Everything seems fine Mike. I have not changed lighting or anything else lately.
     
  5. Mike

    Mike Retired Moderator

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    I think the first step is to check your water change water, test the R/O, it needs to be zero TDS, then mix it with the salt and check for nitrates and phosphates and see what happens, also post the results.
     
  6. brentnorm

    brentnorm Thread Starter

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    Will do some water tests in the morning. Don't have a TDS meter so I will have to try and find one. Will post results as soon as I have them.
     
  7. Mike

    Mike Retired Moderator

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    Can you touch the algae and describe it? is it slimey? hard? etc...
     
  8. brentnorm

    brentnorm Thread Starter

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    It's soft and feels like you can peel it off but when I try it won't come off.
     
  9. viper357

    viper357 Admin MASA Contributor

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    That looks a bit strange, is it not perhaps a type of encrusting sponge?
     
  10. Reef Maniac

    Reef Maniac MASA Contributor

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    Does it feel "rubbery" - if so, it is most likely one of the Codium species, perhaps C. lucasii or C. pelliculare

    These are not common in aquaria, as they don't usually do too well under very bright light (do you have MH?). Unless they start to encroach onto your corals, or over grow something which you like, I would suggest that you just leave it. Unfortunately, many people in this hobby consider algae to be "bad", but in fact algae are NATURAL and mostly beneficial, and can actually make a tank look much more natural.

    Hennie
     
  11. brentnorm

    brentnorm Thread Starter

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    Thanks Hennie.

    I do not have a MH, only 4 T5's and I really don't mind leaving it except for the bit growing over and killing my zoas.
     
  12. brentnorm

    brentnorm Thread Starter

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    My params

    Nitrite: 0.1
    Nitrate: 50
    PH: 8.2
    Ammonia: 0
    Phosphate: 0.1
    Alkalinity: 3meg/L
     
  13. Reef Maniac

    Reef Maniac MASA Contributor

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    With your nitrate level as high as it is, and a positive phosphate reading, it's not surprising that you are experiencing algae growth - you really should do something to lower those readings.

    Hennie
     
  14. brentnorm

    brentnorm Thread Starter

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    Thanks Hennie. I was quite surprised when I did the tests. Gonna do a water change now.
     
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