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Cabomba Factoids
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Origin
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Brazil -- now all over North and South America |
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Temperature
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Nearly immaterial |
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Lighting |
Medium to high |
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Threats
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African cichlids, apple snails, medications, and koi |
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Size
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Easily grows to three feet. Larger in the wild. |
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Foods
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Fish wastes (including carbon dioxide) and fertilizer |
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Oxygenator |
Grows very fast and gives off much oxygen |
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Water
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Nearly immaterial |
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Substrate |
Flexible but I prefer a b-b size natural gravel |
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Caution |
Highly invasive weed. Hardy to Zone 5. |
LA
Single stems of cabomba looks pretty good.
Best Substrate: In
the wild cabomba takes over shallow bodies of water with a
silt bottom. It will root and flourish in nearly any
type of substrate except maybe marbles.
LA
Multiple stems look even better.
Prologue: Illegal
in many states and some countries, this attractive aquarium
plant has long been an aquarist favorite. The very
traits that make it an invasive pest also make it an easy to
grow aquarium plant.
LA
Purple cabomba on the left. Regular cabomba on the
right.
Introduction: We (aquarists) call it cabomba.
Others call it Brazilian fanwort (wort is an old word for plant),
Brazilian waterpest, or just an invasive weed. So why grow it?
Cabomba looks pretty good. There's two versions: Green
cabomba, Cabomba caroliniana, which is the easiest to grow and
purple (or red) cabomba, Cabomba pulcherrimma, which is harder to
grow and probably the reason some aquarists consider cabomba very
difficult or even impossible to grow.
LA
Cabomba looks best when planted in patches. It also makes a
good baby saver.
How to Plant Cabomba: Plant each cabomba stem at least two inches from
its neighbors. This gives it room to "fan out." Put
shorter stems in front for
a natural look. Avoid planting in rows of equal height stems. Or use it behind rocks
or wood to
"frame" your focal point. Keep it out of dark corners.
Cabomba loves the light.
LA
Cabomba quickly grew to the top of this 20H. Note the numerous
roots.
LA
Even more roots here.
Cabomba Grows Fast:
Adding more light, fertilizer, and carbon dioxide makes cabomba grow as
much as an inch per day. Ditto if you put it in an outdoor pond.
It efficiently absorbs the nutrients it needs thru its fan-like leaves
as well as its relatively weak roots. Under average aquarium
conditions, you can expect an inch or two of growth per week.
Water Cleaner: Cabomba grows fast because it feeds on fish
wastes: carbon dioxide, nitrogenous, and phosphate waste products.
LA
Cabomba makes an instant "filler plant."
LA
Cabomba makes an excellent background plant.
LA
Vary the length of your cabomba stems for a more natural look.
LA
Cabomba makes fish feel at home.
LA
Cabomba makes an excellent egg-laying site for egg scatterers.
LA
Baby livebearers (in this case mollies) like to hide in the fronds.
Cabomba Provides Security:
Danios couldn't care less. However, many of the shyer aquarium
residents feel and act more natural in a forest of cabomba. Livebearer
fry find places to hide in its fan-like fronds as well as tiny animalcules
to snack on. Egg scatterers also find it an excellent egg laying
medium. And some adult fish like to snack on the fronds.
LA
Mix with other plants for variety.
LA
Mix in some other plat types.
Avoid Mono-Culture: Mix in other plant species to pep up
your aquascaping. Other shades of green as well as contrasting colors
and leaf shapes make your cabomba show better.
LA And it grows
well floating.
Too
Lazy to Plant? Unplanted stems grow faster because
they're nearer the light source. They're not as attractive this way, but
the fish don't seem to mind. In fact, livebearer fry would especially
appreciate a layer of cabomba at the surface.
LA
Broken pieces will grow into new plants.
Save Your Broken Pieces? Top swimmers feel less like
bailing when they have plants in their strata. Pieces that break off
like this and grow into new plants are what make Cabomba such an invasive
species in some bodies of water.
LA
Cabomba also blooms.
LA
Mostly cabomba.
LA
Cabomba plus driftwood.
LA
Cabomba plus drftwood plus Java fern.
Cabomba Likes Ponds: In full sun in an outdoor pond,
cabomba grows like a weed. It even produces a yellow floweret.
It makes a great oxygenator IF there are no goldfish or koi in the pond.
It grows so thick in lakes that it interferes with boating and swimming.
That's why cabomba is illegal in many states. Do not toss your
unwanted cabomba in a nearby lake. Some states want you to dry it out
and burn it if you decide to dispose of your cabomba. LA
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