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Aldrovanda vesiculosa

Aldrovanda vesiculosa

Aldrovanda vesiculosa: rare, rootless floating carnivorous aquatic plant. Light: Medium to high.

Taxonomy
Class:Liliopsida
Order:Caryophyllales
Family:Droseraceae
Genus:Aldrovanda
Species:Aldrovanda vesiculosa

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Water Temperature

4 - 30 °C

pH Value

5 - 6.8

Water type

Freshwater

Light

Medium - High

CO2

Medium - High

Expected height

15 cm

GH

1 - 8 dGH

KH

0 - 5 dKH

Species description

Aldrovanda vesiculosa, commonly known as the waterwheel plant, has an extremely fragmented but cosmopolitan geographical distribution, with native populations recorded in Central Europe, Africa, Asia (including Japan), and Australia. Its typical habitat consists of lentic, shallow, and warm fresh waters, such as acidic ponds, peat bogs, and wind-sheltered lake bays. It prefers oligotrophic waters rich in free carbon dioxide and surrounded by dense vegetation providing support and shelter, as well as an abundance of aquatic microfauna. It belongs to the Droseraceae family and is the only living species of the genus Aldrovanda, representing a true living fossil closely related to the terrestrial Venus flytrap (Dionaea muscipula). Genetically, Aldrovanda vesiculosa is characterized by a reduced and highly specialized genome that manages the complex trap-triggering mechanism.

Care, breeding and tankmates

It prefers soft and acidic waters, with an optimal pH range between 5.0 and 6.8. It tolerates wide temperature variations, from 4°C to 30°C; in cold climates, it produces dormant winter buds (turions) that sink to the bottom to overwinter, while in tropical aquariums it grows continuously at temperatures between 20°C and 25°C. The primary risk is the proliferation of thread algae, which easily get tangled in the leaf whorls, smothering the plant and blocking trap function. Another risk is the lack of microscopic live prey, leading to slow starvation of the plant. It is highly sensitive to chlorine and heavy metals dissolved in the water.

Geographic Origin and Distribution

This species originates from: Cosmopolitan.

Origin

Europe, Mediterranean, and West AsiaAfrica and MadagascarEast AsiaAustralia, New Guinea, and Oceania

Plant profile

Placement
Midground

Careful consideration of placement is vital for Aldrovanda vesiculosa in any aquascape layout. Positioning it where it receives high lighting will yield the best visual results. Ensure there is enough space around it to accommodate its natural growth pattern without shading neighboring plants. Strategic placement will enhance the overall depth and aesthetic of the aquarium.

Botanical form
Stem

Botanically, Aldrovanda vesiculosa exhibits a distinctive floating_carnivorous form that adds unique texture to the tank. Its structural characteristics make it a fascinating subject for dedicated aquatic botanists. The leaf morphology and stem structure are adapted to its specific environmental niche. Observing its natural form develop provides great satisfaction to the careful aquascaper.

Growth
Medium

The growth rate of Aldrovanda vesiculosa is generally considered medium under optimal aquarium conditions. Providing the right balance of light and CO2 can slightly accelerate this pace. Aquarists should be prepared to manage its growth to maintain the desired layout shape. Consistent environmental parameters are key to stable and predictable development.

Substrate
None
Column fertilization
Recommended

Liquid column fertilization is highly beneficial for the sustained health of Aldrovanda vesiculosa. Dosing a comprehensive liquid fertilizer ensures that leaves have direct access to essential minerals. It is recommended to divide the weekly dose into smaller daily additions for better absorption. Adjust the dosage based on the plant's visible response and overall biomass.

Root fertilization
None

Root fertilization plays a significant role in the overall vitality of Aldrovanda vesiculosa. Inserting nutrient-rich root tabs directly into the substrate near its base promotes strong root systems. This is particularly important in mature setups where substrate nutrients may have depleted. A healthy root system anchors the plant securely and supports robust upper growth.

Trimming
Occasional

Regular trimming is required to maintain the desired shape and health of Aldrovanda vesiculosa. Using sharp aquascaping scissors ensures clean cuts that heal quickly without inviting rot. Pruning also encourages denser regrowth and prevents lower portions from being overly shaded. Remove any decaying trimmed leaves promptly to maintain optimal water quality.

Propagation
Cuttings

Propagating Aldrovanda vesiculosa is a rewarding process that allows aquarists to expand their collection. Depending on its floating_carnivorous nature, this is usually achieved by taking healthy cuttings or dividing the rhizome. Ensure that each new segment has sufficient healthy tissue to establish itself. Plant the new propagules carefully to encourage rapid rooting and new growth.

Sensitivity
Moderate

Aldrovanda vesiculosa can be somewhat sensitive to sudden fluctuations in water parameters. It may exhibit signs of stress or melt if exposed to abrupt changes in temperature or pH. Algae treatments containing copper or glutaraldehyde should be used with extreme caution around this plant. Maintaining a stable, clean environment is the best defense against health issues.

Layout role
Floating

In the aquascape, Aldrovanda vesiculosa serves an important role by adding specific structural elements. It can be used to create focal points or to soften the transition between hardscape and open spaces. The plant's unique texture contrasts beautifully with both fine-leaved and broad-leaved neighbors. Thoughtful integration of this species greatly elevates the natural feel of the display.

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 06/16/2026
Aldrovanda vesiculosa Care Guide & Tank Setup | Atlarium