Aponogeton longiplumulosus – Large
Aponogeton longiplumulosus is a striking freshwater bulb plant from Madagascar known for its long, flowing, heavily ruffled leaves. Its olive-green foliage creates a dramatic background or centerpiece in larger planted aquariums and adds constant movement as the leaves sway in the current.
The Large size is ideal for customers looking for a more established specimen with greater immediate visual impact.
Key Features
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True fully aquatic freshwater plant
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Native to Madagascar
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Long, narrow, strongly ruffled leaves
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Beautiful olive-green coloration
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Excellent background or specimen plant
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Best suited to medium and large aquariums
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Relatively undemanding once established
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Can grow tall enough to reach toward the water surface
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Develops from a bulb or tuber-like base
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May produce attractive flower stalks under good conditions
Plant Information
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Common Name: Aponogeton longiplumulosus
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Scientific Name: Aponogeton longiplumulosus
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Origin: Madagascar
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Plant Type: Aquatic bulb plant
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Placement: Background or centerpiece
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Leaf Length: Approximately 14–24 inches under suitable conditions
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Plant Spread: Approximately 10–16 inches
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Growth Rate: Moderate to fast once established
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Care Level: Easy to moderate
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CO₂: Optional
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Substrate Feeding: Beneficial
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Aquarium Size: Best for medium to large aquariums
Appearance
Aponogeton longiplumulosus develops long, slender leaves with pronounced rippling or fluting along the edges.
Its foliage typically ranges from olive green to green-brown and provides a soft, flowing appearance that works especially well behind rocks, driftwood, or shorter foreground plants.
Mature plants can become substantial, so adequate vertical and horizontal space should be provided.
Aquarium Placement
This plant is best used in:
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Aquarium backgrounds
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Rear corners
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Large planted displays
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Centerpiece plantings in spacious tanks
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Nature-style aquascapes
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Community aquariums
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Large tropical freshwater aquariums
Because of its mature size, it can overshadow smaller plants if placed too close to the foreground.
Lighting
Aponogeton longiplumulosus generally performs well under low to moderate aquarium lighting.
Moderate lighting usually encourages stronger growth while helping maintain healthy leaf development.
Extremely intense lighting is not required.
Substrate and Planting
This species grows from a bulb-like base.
When planting:
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Place the bulb into the substrate.
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Leave the growing tip or crown at or slightly above the substrate surface.
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Do not bury the entire bulb deeply.
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Use a nutrient-rich substrate or root fertilizer near the bulb.
Tropica specifically notes that the bulb can be covered by substrate as long as the sprouting tip remains at the surface.
Fertilization
Aponogeton longiplumulosus benefits from nutrients available through both the water column and substrate.
For stronger growth:
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Use a complete aquarium fertilizer as needed.
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Add root tabs or nutrient capsules near the bulb.
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Maintain adequate potassium and micronutrients.
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Avoid excessive fertilization if algae becomes a problem.
Tropica notes that placing a nutrition capsule beneath or near the bulb can noticeably improve growth.
CO₂ Requirements
Supplemental CO₂ is not required for this plant.
CO₂ injection may increase growth and overall vigor in high-tech planted aquariums, but healthy growth is possible in properly maintained low-tech tanks.
Water Parameters
Aponogeton longiplumulosus is relatively adaptable and does not require extremely specific water chemistry.
A practical range is:
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Temperature: Approximately 72–82°F
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pH: Approximately 6.0–8.0
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Water Hardness: Soft to moderately hard
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Ammonia: 0 ppm
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Nitrite: 0 ppm
Stable conditions and consistent aquarium maintenance are more important than reaching one exact value.
Growth and Size
Under good conditions, the leaves may reach approximately 14–24 inches long, making this a substantial aquarium plant.
Tropica lists leaf lengths of approximately 35–60 cm and an overall plant width of approximately 25–40 cm.
Because of this size, it is best suited to aquariums where the plant has room to develop without blocking light from smaller species.
Dormancy
Like many Aponogeton species, longiplumulosus may occasionally enter a resting period.
During dormancy:
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Older leaves may yellow or die back.
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Growth may slow considerably.
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The bulb may appear inactive for several weeks.
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New growth can resume after the rest period.
Do not automatically discard the bulb simply because the leaves have died back. If the bulb remains firm and does not smell rotten, it may still be healthy.
Flowering
Under favorable aquarium conditions, mature plants may produce flower stalks that extend toward or above the water surface.
The flowers can develop attractive purple to violet coloration.
Flowering is not required for the plant to remain healthy.
Trimming and Maintenance
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Remove damaged or yellowing leaves at the base.
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Avoid cutting healthy leaves halfway down unless necessary.
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Remove leaves that become heavily covered with algae.
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Keep debris from collecting around the crown.
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Add root fertilizer periodically if growth slows.
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Allow adequate space around mature plants.
Compatible Aquarium Livestock
Aponogeton longiplumulosus works well in many freshwater aquariums containing:
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Tetras
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Rasboras
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Rainbowfish
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Gouramis
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Angelfish
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Corydoras
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Loaches
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Peaceful community fish
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Freshwater shrimp
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Snails
Large herbivorous fish or fish that frequently uproot plants may damage the foliage or bulb.
Frequently Asked Questions
Is Aponogeton longiplumulosus a true aquatic plant?
Yes. It is a fully aquatic freshwater species from Madagascar.
How large does it get?
Leaves may reach approximately 14–24 inches long, while mature plants can spread approximately 10–16 inches wide.
Does it need CO₂?
No. Supplemental CO₂ is optional, although it may improve growth in planted aquariums.
Should I bury the entire bulb?
No. The growing tip should remain at or near the substrate surface.
Does it need root tabs?
Root fertilization is highly beneficial because Aponogeton species obtain substantial nutrients through their root systems.
Why are all the leaves dying?
The plant may be entering a natural dormant period. Check that the bulb remains firm and healthy before discarding it.
Is it suitable for small aquariums?
Usually not. Mature plants become quite large and are better suited to medium and large aquariums.
Can it flower underwater?
It can produce a flower stalk that grows toward and may extend above the water surface.
Available at Tropical Treasures Wyo
Aponogeton longiplumulosus Large is available at Tropical Treasures Wyo in Cheyenne, Wyoming, when in stock. This impressive ruffled-leaf bulb plant is an excellent choice for customers looking for a larger background or centerpiece plant.
Live aquatic plants may be available for shipping when eligible.
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