|
Narrow-Leaf Anacharis Factoids
|
|
Origin
|
South America |
|
Temperature
|
Nearly immaterial |
|
Lighting |
Medium to high. More light increases growth. |
|
Biggest
Threats
|
African cichlids, apple snails, medications, and koi |
|
Size
|
Easily grows to three feet |
|
Foods
|
Fish wastes work. Fertilizer not needed. CO2
not needed. |
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Water
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Nearly immaterial. Hard water probably best. |
|
Substrate |
Immaterial. Also grows floating. Grows weak
roots. |
|
Plusses |
Water cleaner. Provides security. Oxygenator. |
|
Invasive plant |
Very easy to grow. Considered a weed by many |
Prologue:
We see regular anacharis on the market all the time.
This last year or so, Weve been seeing the narrow-leaf version more and
more. Maybe you haven't noticed the difference. They are very
similar -- but different.
LA
Narrow-leaf anacharis, Egeria najas -- similar to
Anacharis, Egeria
densa, but "skinnier."
LA
Egeria densa, regular
Anacharis easily outsells all other aquarium plant species.
LA
Egeria najas, narrow-leaf anacharis. Less common but just as versatile.
Introduction
You'll usually see narrow-leaf anacharis on the market
as a bunch plant. Bunch plants used to be sold with a strip of lead
wrapped around them to hold them to the bottom. Most suppliers are
evidently "getting the lead out" because we're seeing less and less of it.
(Probably some environmental problem like lead shot and lead sinkers?)
Anyway, the new bunches float. Not the best display for sales.
LA
Often sold as a "bunch plant."
Bunch Problems.
In addition to floating, these bunches get a tourniquet
wrapped around their butts to hold them together. Unfortunately, the
tourniquet also chokes the life out of much of the plant.
LA
This is the new bunch system.
LA
The new bunch holder.
Lots of Waste.
These plastic wrapped wires choke the life out of the
bottom ends of the anacharis stalks. You need to remove the plastic
strips and these dead and dying parts before planting your new narrow-leaf
anacharis.
LA
Here you get some idea of how much of the stem is affected by the plastic strips.
LA
Here's six bunches taken apart. Good strands on the left.
Infusoria food on the right. Almost 20%.
LA
Recently planted strands (no attempt to decorate). Natural gravel wors
best (IMHO).
More Utilitarian than
Decorative.
Think of your new narrow-leaf anacharis as a water
cleaner -- rather than an item of decor. It absorbs carbon dioxide
from the water, as well as carbonates, phosphates, and nitrogenous waste
products. In addition, it provides oxygen as well as food -- the plant
itself and the tiny animalcules that live on its surfaces. And that's
not all, as they say on the late night infomercials. It also makes a
great place for breeding egglayers, a hiding place for small livebearers,
and provides security for shy fishes. Not a bad Deal.
LA
First day of "planting." Will eventually turn toward the light.
LA
Second day after planting.
LA
Third day, not as phototrophic as aquatic plants with larger leaves.
LA
"Planting" in quotes because narrow-leaf anacharis has feeble roots.
About those "Roots."
Narrow-leaf anacharis grows a rather puny root system. It
takes in little nutrition thru its roots. It absorbs the "food" it
needs thru its leaves. This makes it a very efficient and actually
aggressive plant when introduced into most waters. In full sunlight it
takes over and out-competes most other plant species. When you try to
destroy it by breaking up the strands, each shred usually grows into a new
plant.
LA
Even little shreds like this will flourish in sunny locations.
How Much Light Needed?
Narrow-leaf anacharis grows very well under most aquarium
lights. It grows particularly well in smaller tanks because of their
lower water levels.
LA
It grows fastest when floating at the surface.
LA
Light plus fish wastes encourge faster growth.
LA
New strands (and roots) emerge from the numerous nodes on its stems.
Fast Growing
Like your lawn, you will need to "mow" your narrow-leaf
anacharis on a regular basis. (Hint: Do not use an electric
mower.) Some plant keepers report as much as two
inches per day. Don't expect that much but plan on at least an inch
per week. When yours grow too long, just break off the tips and
re-plant them. Three or four inchers work best. Usually your
parent plant will start a new growth tip where you snip the tip.
LA
Theoretically grows to three feet -- actually grows much longer.
Last Words.
Narrow-leaf anacharis eats
fish wastes -- carbon dioxide, nitrogenous, and phosphate wastes.
You can do fewer water changes, however, fewer water changes also slow
the growth of anacharis. You give them fresh carbonates with each
water change. How do you "cycle" a goldfish bowl?
Throw in a bunch of anacharis. Three to four bunches work wonders
in a new 10-gallon tank. If they are illuminated. LA
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