Vibrant healthy underwater photograph of Water Wheel Plant (Aldrovanda vesiculosa) - Plant AI database

Water Wheel Plant

Scientific Name: Aldrovanda vesiculosa

Water Wheel Plant is an exceptionally rare, highly endangered rootless floating carnivorous species native to pristine wetlands of Europe, Asia, and Australia. Famed for its spectacular, wheel-like whorls of green leaf traps that function like miniature underwater Venus flytraps, it snaps shut in a jaw-dropping 10 milliseconds to capture water prey, serving as the ultimate high-tech showcase.

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Lighting Needs

Moderate to High

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Water Parameters

Aquatic, Soft Acidic (pH 5.5-6.8)

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Optimal Substrate

Floating (Rootless)

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Hardy Temperature

18°C - 26°C

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Toxicity Level

Pet Friendly (Non-toxic)

Identify Water Wheel Plant leaf details
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How to Identify Water Wheel Plant

Use our structural morphological markers to verify the identity of your Water Wheel Plant in any local nursery or wild wetland:

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    Overall Visual Shape: Extraordinary wheel-like whorls of green leaf traps resembling miniature water-borne Venus flytraps.
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    Leaf Morphology: Radially arranged whorls of 8 green leaf traps (each trap has two halves with trigger hairs that snap shut in 10ms).
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    Root & Anchoring Structure: Completely rootless; floats freely below the water surface, relying on prey capture for nitrogen.
💡 Plant AI Tip: Take a photo with Plant AI to identify aquatic weeds and diagnose fungal spot diseases in 1 second.

Complete Cultivation & Spawning Guide

Follow our detailed scientific water parameters and care guides to keep your Water Wheel Plant thriving.

pH: 5.5 - 6.8, GH: 1 - 4 dGH. Requires extremely soft, slightly acidic water. Sensitive to dissolved mineral hardness.
Very High. Pressurized CO2 injection (20-30 ppm) is mandatory to stimulate its growth and maintain trap snapping elasticity.
Moderate to High. Intense full-spectrum lighting keeps the leaf traps thick and prevents stem melting.
Clip old, decaying, or leggy fronds at the base. Harvest baby plantlets that form on leaf margins to multiply.
Requires extremely low macro-nutrient levels. Overdosing nitrogen or phosphorus will degenerate the traps. It feeds on prey.
Completely rootless floating plant. It requires no soil or substrate whatsoever; roots hang freely to absorb water nutrients.
Optimal temperature is 18°C to 26°C (64.4°F - 78.8°F). Sensitive to severe cold shocks below 15°C.
Requires gentle to moderate current. Too strong current will break the delicate feathery stems.
Its traps are tiny (under 0.2 inch), safe for community fish, shrimps, and fry. Best kept in specialized setups.
Slow growth makes it susceptible to hair algae. Keep water clean and employ Siamense Algae Eaters or Amano shrimps.
Best attached to midground rocks or roots. Leave spacing of 3 to 4 inches from neighboring clumps to allow perfect spread.

Are your Water Wheel traps degenerating, browning or refusing to snap shut?

Inject CO2, maintain extremely soft acidic water, supply micro prey (copepods), and avoid macro-nutrient overdoses.

Diagnose My Aquatics

Common Diseases & Treatment

Trap Degeneration (Excess Fertilizer)

Symptoms: Traps shrivel, fail to open, and lose their trigger hair sensitivity, leading to starvation.

Action: Caused by excess macro-nutrients in water. Reduce liquid fertilizer dosing; rely on live micro prey (copepods/daphnia).

Trap Browning (High pH Shock)

Symptoms: Stems and radial traps turn brown, rot, and dissolve within days.

Action: Triggered by hard water or alkaline pH above 7.0. Immediately restore RO water and soft acidic parameters.

Frequently Asked Questions

Q: How fast does the trap snap shut?

A: It is one of the fastest moving plants in the world. The trap door snaps closed in less than 10 to 20 milliseconds, which is faster than a Venus flytrap.

Q: What water parameters does it need?

A: It is extremely demanding, requiring soft, acidic water (GH < 4, pH 5.5-6.8), consistent gas CO2 injection, and zero excess mineral buildups.

Q: What does it eat in an aquarium?

A: It feeds on microscopic aquatic prey, particularly copepods, daphnia, ostracods, and mosquito larvae that get sucked into the traps.

Q: Why are the traps turning black?

A: Traps turn black and rot after digesting prey 2-3 times, which is a normal life cycle. Simply trim old black segments from the bottom stem.

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