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Thread: plants without co2?

  1. #1
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    plants without co2?

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    any recommendation on plants that grow in a tank without CO2 injection?

    Nanas, e. tenellus...??

    Am thinking of setting a 1ft cube tank for a colleague. But he doesn't want any CO2 for some reasons which I don't know either.

    Thanks.

  2. #2
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    Carl,

    Some of them which I know of:

    • Nanas
      java ferns
      sagittaria subbulata
      crypts
      java moss
      vals
    Zulkifli

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    Carl,

    The trick is lower light and slower growth. Pick plants that do not demand 4W/G and be patient, as it will take longer for them to fill in and mature. I like Zul's list, but I have not done as well with Vals in low light. Don't know why.

    Wright
    01 760 872-3995
    805 Valley West Circle
    Bishop, CA 93514 USA

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    Thanks. I intend to use only 9 - 11 watt PL light, those clip on type.

    But the key is no CO2. I wonder if Taiwan Moss will grow under this conditions.

  5. #5
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    There may be excess CO2 in some rare soda springs, but most aquatic plants live in water that has an equilibrium of CO2 with the atmosphere. [Many mosses get more by growing emersed, of course, in damp places.]

    Injecting CO2 into an aquarium is potentially upsetting to the natural way of things, so isn't as mandatory, I suspect, as some seem to think. YMMV. I have grown lush plants both with and without CO2. The difference is measurable, but not really dramatic.

    IMHO, it only becomes essential when you are pushing very high light and adding nutrients to get rapid growth. Failure to add CO2, then, is a recipe for algae blooms.

    Wright
    01 760 872-3995
    805 Valley West Circle
    Bishop, CA 93514 USA

  6. #6
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    Reduce surface disturbance and more CO2 will remain in the water. If you have soft water the CO2 levels will be more than in hard alkaline water.

    Good plants are:
    Anubias
    Hygrophilia
    Vallis
    Crypts
    Java Fern + moss

    Use a fine sand substrate instead of gravel. It should be only about 3 to 4 cm deep.

    Works for me...

    tt4n

  7. #7
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    Hi carlfsk,
    I'd like to add to the list:
    crinium Thianum and water pennywort.
    However, I have them in a tank next to the window that has no direct sunlight throughout the day, except maybe a few days throughout the year. The pennyworts has been spreading profusely, and some leaves have grown emerged. No CO2. :wink:
    cheers,
    nelson

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