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Thread: Help - my aldrovanda is dying

  1. #9

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    I didn't measure the peat out, just a couple of big handfuls into a large saucepan and filled up with water.

    My Aldrovanda are in a perpetual state of dying at the rear, but the growth at the front is so quick that the plant keeps ahead. Yellowing at the back is not a problem if the growing tip is healthy. Incidentally, at some point in the next month or two a turion-forming variety will start to die back and form the winter buds...

    What are your temperatures? And what variety are you growing? How much light does it get? What water do you have? How big is the tub? Is there an algae problem? etc. If you can tell us what conditions you have yours in then we can try to see if anything can be improved on.

    Cheers!
    Rob Howe.

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    Seeking: Drosera hilaris (seed)

  2. #10

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    Hi everybody,
    I checked up on my Aldrovanda, and it's condition appears to have stabilized, although it still looks about as full of vigor as King Tut. In answere to Rob-Rah's questions, I "grow" my Aldrovanda in a 1-2 gallon tank near a south facing window that gets indirect sunlight all day. There is no algae problem, as I change the water about once a week, but there is some kind of plant that came with it that resembles some kind of floating fern [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_l_32.gif[/img] . I have recently added some peat to the water, and I am going to make some of that "peat soup" as soon as I post this- I hope this helps [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img] .

    Thanks!

    ati

  3. #11

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    If the plant is perking up then that's good.

    Half of me is telling me that it's not a good idea to keep changing the water though. What you want to do is stablise the conditions so that they are appropriate, not keep the plant guessing as to what is coming next. The stable and healthy conditions involve getting lots of Carbon Dioxide into the water. Peat water will increase acidity and help against algae, but what is ultimately needed for optimum growth is decomposing plant matter on the bottom. This releases CO2 as it decomposes, keeping the water mildly acidic (Aldrovanda doesn't need acid consitions incidentally), but more importantly providing the CO2 that the plant seems to thrive on.

    I use sedge litter as that is what is classically recommended, and is replenished naturally by the carex and typha that is growing in the tank. It also releases humic and tannic acids into the water, which are a good source of nutrients for the plant. I have also grown it with simply a bunch of leaves from some garden plants (mainly ceanothus) at the bottom of the tank above the peat. Some growers empty the sludge from their water trays into the tank.

    Companion plants are also useful becuase they extract nitrates which would otherwise fuel algae.

    Do you know if yours is a variety that will want a winter dormancy or not?

    Rob.
    Rob Howe.

    Homepage
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    Seeking: Drosera hilaris (seed)

  4. #12

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    Hi everybody,
    I think mine is an Aldrovanda Poland. I am going to re-habilitate the tank today, using everybody's advice. The peat I bought has a lot of twigs, bark, etc. in it, will this be enough organic matter? If it isn't, will a bunch a larger twigs and leaves from my yard work [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_l_32.gif[/img] . I am de-bugging a yeast based carbon dioxide airating system, wihich should be ready by evening. If all goes well, then my Aldrovanda should be doing better within a few days [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img] . Thank you all very much for helping me.

    ati

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