Animal Stories - Water Onion Plant

Animal-World Information about: Water Onion Plant

   The Onion Plant is a great and hardy plant for many aquariums because it's leaves are extremely tough, making it suitable for aquariums with larger fish!
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Belle - 2015-09-29
Will the water onion be OK with a Betta? Can the bulb be left on the top of the tank to grow?

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  • Clarice Brough - 2015-10-04
    The Betta should be fine with the plant. They are bulbs, so should be planted in a substrate, but their long leaves will grow to the surface and trail along it.
John - 2015-03-11
I have a heavily planted 55 gal aquarium with approx. 48 fish, cory's, cherry barbs and harlequin rasboros. I have a power filter rated for 70 gal tanks but have not changed the filter medium in years with zero ill effects, it is an extremely healthy tank. The filter is starting to get a little noisier and is likely on its last legs. I wonder if I should reinvest in another filter of the same type or since it doesn't require filter media changes for a healthy tank, should I just put in a powerhead for water movement. I also have two robust bubble bars that produce a lot of water agitation.

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  • Clarice Brough - 2015-03-11
    Wow, you have a wonderful biotope in your aquarium. Sounds like the plants, fish, decor, and possibly the filter media are all working together nicely to keep your tank in great shape. So what to do when the filter motor may be going out is a good question. The media in the filter may be very rich with nitrifying bacteria, which may be helping to keep your tank stable. If that's the case, maybe get the same type filter and keep the existing media... But if you think the media is not contributing to the tanks stability, then loosing the filter may not have an effect. Really hard to say! Personally, between your two choices, I would get a new filter rather than relying on water movement alone for water quality. Generally the old media is replaced, but doing that does take out bacteria and so colonies have to re-establish in the new (takes about 6 weeks). But on the other hand, bacteria lives on all the other decor in the tank as well. So it's really hard to say what consequences there will be in either case with a tank that is as well balanced as yours!
jordan - 2012-06-03
So I planted some Water Onion bulbs a couple of days ago and on some of the bulbs there is some white cloudy stuff starting to appear and I wasn't sure exactly what that was? Should I remove the bulbs? Is this dangerous to my fish? Any information would be helpful and thank you in advance!

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  • alex - 2014-04-05
    The white cloudy stuff is probably mold?
  • tracy - 2014-12-28
    does it resemble a blister/bubble? if so, i think it's okay. just means that it's growing :)
alex - 2011-06-26
I bought some moneywort from petsmart, and a leaf of onion plant made it into the bag (and my tank), do you think this will grow?

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  • Charlie Roche - 2011-06-27
    Might as well try. Usually they propagate via the offshoot bulbs. I have no idea if a leaf can actually root but no reason not to try. Right?
  • Alan - 2014-03-28
    If you haven't got your answer. NO... The leaf will not produce roots with this plant.
maria - 2012-10-17
Hiya, i want to know if you are still interested in the water onion bulbs. We can provide. Contact +237 96571005 or email. regards

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  • Angel - 2013-03-08
    How much do you want for the water onions? Please email me.
  • judy mayes - 2013-03-14
    do you have the Onion Plant if so please let me know with details please
Ngo Huong Tra - 2010-11-16
Maybe this is kind of stupid, but is this plant edible? (eat-able?)

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  • spencer - 2011-01-07
    To you, it tastes horrible but to the fishes, it tastes nice.
  • Angie - 2012-01-26
    It's NOT an actual onion.

    It's poisonous if ingested. Most fish and other aquatic life leave it ALONE due to the fact, that it doesn't taste good to them.

    Hoped I helped! :D
mel - 2012-06-01
Water onions are the only plant that my fish won`t eat. They grow great. The only problem is that I can`t find anymore here. Orange Park Fl

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  • Anonymous - 2013-01-11
    You can buy them at Petsmart
Julia - 2008-01-29
This plant is one of my favorites. It's so pretty and bright green. It seems to be sensitive to substrate and water conditions though. My African Cichlids seem to tear up just about everything, but they leave this plant alone.

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  • Nick - 2011-05-03
    I am looking for water onion bulbs in Toronto, Canada but cant find them anymore. If you know anywhere or your willing to sell me 3-4 bulbs let me know.

Beth Spirko - 2011-03-18
I got a water onion recently. It was the only bulb in an assortment pack that grew, even though there was a beautiful Aponogeton crispus in the bunch.

Anyhow, one of my fish found the Crinium/water onion delicious. At first, there was a little nibble out of it near the base. Soon, the entire root meristem was gone. The rest of a bulb is all leaves, so it's pretty much dead. I've decided, however, to leave it in & let the hungry muncher finish his/her feast.

I'm a bit bummed, though. I keep having silly thoughts like "Bulbs are full of parenchyma (somewhat undifferentiated plant storage & bulk structural cells, almost like plant "stem cells"). A culture in the right medium, & I'm back in business." Clearly, it's not worth the hassle for one of the most affordable aquatic plants. Besides, I personally don't know the techniques. I once knew someone who did, & I bet it's getting more mainstream...

Recently, I gave away my aloe. Perhaps I'll see if what's left of my crinium is as good as its reputation for skin treatment...