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Background · Beginner friendly

Canadian Waterweed

Elodea canadensis

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✦ DIFFICULTY Easy

A forgiving choice for newer planted tanks.

☀ LIGHT Moderate

Around 10 hours is a useful starting point.

≈ CO₂ Optional

Injection is not normally necessary.

↗ GROWTH Fast

High trimming needs.

PLANT OVERVIEW

About Canadian Waterweed

A cold-water tolerant stem plant very similar to Anacharis.

Elodea canadensis is extremely hardy and fast-growing. It prefers cooler water than Egeria densa and is often used in ponds.

Shrimp friendly Low-tech suitable High-tech suitable Fry cover

CARE PROFILE

What this plant needs.

The useful numbers and practical notes, grouped around how you actually keep the plant.

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TANK FIT

Placement + size

Primary placementBackground

Typical height10–36 in

Typical width4 in

Suggested minimum tank5 gal

Suggested tank height38 in+

☀

LIGHT + CO₂

Energy demand

Ideal lightModerate

Photoperiod range8–12 hr

Approx. PAR15–80

Injected CO₂Optional

CO₂ benefitVery Low

●

NUTRITION

Where it feeds

Root feedingVery Low

Water-column feedingHigh

Overall fertilizer demandLow

Iron demandVery Low

MicronutrientsVery Low

≈

WATER

Useful parameter range

Temperature50–75°F

pH6.5–8.5

GH4–20 dGH

KH4–15 dKH

PLANTING

How to plant it.

Substrate: Any

Plant stems individually or float.

GROWTH + PROPAGATION

What to expect after planting.

Propagation

Stem cuttings

Acclimation

Very hardy.

COMMON PROBLEMS

What usually goes wrong.

Prefers cooler water; can melt in high heat.

KEEP EXPLORING

Plants with similar growing conditions.

Matched from the PlantLab database using light, CO₂, difficulty, feeding demand and placement.