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Results 31 to 33 of 33
  1. #31

    Join Date
    Oct 2013

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    0 Not allowed!
    I was worried about the roots crowding the tank lol

  2. #32

    Join Date
    Nov 2008
    Vancouver, BC, Canada

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    【ツ】 - korith   So glad someone else takes KH seriously! - talldutchie   most promising newbie award! - talldutchie   Good advice. Stick around! - ~firefly~   A gift for your knowledge of Tetras. - steeler1   


    0 Not allowed!
    Quote Originally Posted by DKRST View Post
    The RRF have the advantage that they don't seem to go through the periodic die-backs I have with my Frogbit.
    David, I missed this comment previously. Did we ever discuss this on TFK? I have the same issue, my Frogbit goes through incredible growth spurts, then it slows to the point of almost completely dying off. After a couple months, back it comes. This has been a regular cycle since I got it.

    At first I thought it might be the closed tanks, but then I discovered that I do not actually have the tropical species, Limnobium laevigatum. There are actually three distinct plant species with (to me from photos) identical leaves, but the flowers are very different. My plants flowered and I took some photos, and added them to the plant's profile; then an employee of the US Dept of Agriculture saw the profile and photos, and emailed to say this plant is considered invasive in several states and suggested we not be promoting it. It was then that I sorted out the different species. So what I have is not tropical but a temperate species, and this probably explains the periodic dying back phase.

    I added this paragraph to the profile:

    There are other plants very similar in appearance that may be confused with Limnobium laevigatum. Limnobium spongia is a native North American Frogbit, and Hydrocharis morsus-ranae is a European/Asian plant sometimes referred to as Common or European Frogbit. This latter is a very invasive plant that was intentionally introduced into North America via Ottawa, Canada in 1932. It has since spread quickly and by 2003 was known to occur throughout much of southeastern Ontario, southern Quebec, northern New York and Vermont and eastern Michigan. "Frogbit" is classified in several states including California and Washington as a noxious weed. It is likely that some aquarium plants are in fact not L. laevigatum but one of the other two.
    Byron Hosking, BMus, MA
    Vancouver, BC, Canada

    Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]

  3. #33

    Join Date
    Oct 2013
    Moore, SC

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    Welcome to the AC :-) - ~firefly~   Shipping Expert, Thanks for your post! - MuckyFish   


    0 Not allowed!
    Byron, I suspect you are correct. I picked my Frogbit up from another aquarist and I've never observed the flower, but right now it's in a die-back phase so it could be the invasive variety. It's not restricted where I'm located, but I probably need to verify the species I have before sending it to anyone else.
    Note to all - it's always a good idea to check regional/state/province restrictions on various aquatic plants and fish before shipping them, or purchasing them! I do typically do this before sending plants to folks.

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