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Aquatic Plant Encyclopedia

Encyclopedia of popular aquatic plants with care guides, traits, and aquascaping tips.

Showing 16 of 67 species

Alternanthera Reineckii© No machine-readable author provided. Rchampagne assumed (based on copyright claims). / Public domain

Alternanthera Reineckii

Alternanthera reineckii

Intermediate

A stem plant coloring deep red to pink. Creates vivid accent color among green aquatic plants.

AlternantheraRed typeStem plant
Didiplis diandra

Didiplis diandra

Didiplis diandra

Intermediate

Small North American stem plant. Tiny opposite leaves grow densely, turning red-orange under high light. Somewhat slow growth, ideal for midground. Hardy despite delicate appearance.

IntermediateStem plantRed
Green Rotala

Green Rotala

Rotala rotundifolia 'Green'

Beginner

A green variety of Rotala rotundifolia. Dense bright green leaves create lush background bushes. Easier than red varieties. Replant trimmings to increase density.

Green RotalaBackgroundStem plant

Hygrophila

Hygrophila

Beginner

Representative fast-growing hardy stem plant. Polysperma is most common. Easily propagated by trimming.

Fast growingHardyBeginner-friendly
Hygrophila Pinnatifida

Hygrophila Pinnatifida

Hygrophila pinnatifida

Intermediate

A stem plant with deeply cut unique leaves. Has unusual ability to attach to rocks and driftwood.

PinnatifidaDeeply cutAttachment
Limnophila Hippuridoides

Limnophila Hippuridoides

Limnophila hippuridoides

Intermediate

A beautiful stem plant from Southeast Asia with purple-tinted leaves. CO2 enhances vivid purple coloration.

HippuridoidesPurpleStem plant
Lobelia Cardinalis© Barnes, Dr. Thomas G. / Public domain

Lobelia Cardinalis

Lobelia cardinalis

Intermediate

A stem plant with bright green underwater and red flowers above. Interesting difference between submersed and emersed forms.

LobeliaRed flowersSubmersed leaf
Ludwigia© Jim Conrad / Public domain

Ludwigia

Ludwigia

Intermediate

Entry-level red aquatic plant. Red coloring depends on light and CO2. Repens and Super Red are popular varieties.

Red plantFun coloringStem plant
Ludwigia arcuata

Ludwigia arcuata

Ludwigia arcuata

Intermediate

North American stem plant with distinctive narrow needle-like leaves. Turns vivid orange to red under high light. Delicate appearance but surprisingly hardy.

IntermediateStem plantRed
Mermaid Weed

Mermaid Weed

Proserpinaca palustris

Intermediate

North American stem plant with unique serrated leaves. Turns golden to copper-red under strong light. Slow grower but adds unique texture to aquascapes.

IntermediateStem plantSerrated leaves
Pearl Grass

Pearl Grass

Micranthemum umbrosum

Beginner

A stem plant with small round leaves strung like pearls. Used in mid to background planting. Produces beautiful bubbles in water. CO2 injection encourages lush growth.

Pearl GrassPearlingStem plant
Pogostemon Erectus

Pogostemon Erectus

Pogostemon erectus

Intermediate

Stem plant with a unique conifer-like silhouette. Beautiful lime-green foliage makes it a popular layout accent. Somewhat slow-growing but hardy.

IntermediateStem plantUnique shape
Rotala

Rotala

Rotala spp.

Beginner

Essential background stem plant genus. Many species including R. rotundifolia and R. indica. Beautiful red coloration and dense bushes achievable through trimming.

Beginner-friendlyBackgroundRed coloring

Rotala Rotundifolia

Rotala rotundifolia

Intermediate

A popular stem plant that colors red to orange. Beautiful gradation with strong light and CO2.

RotalaRed typeStem plant
Tonina fluviatilis

Tonina fluviatilis

Tonina fluviatilis

Advanced

Beautiful star-shaped whorled leaves from Brazil. Requires soft, acidic water — challenging conditions. Stunning star rosettes when conditions are met. A challenge for experts.

AdvancedStem plantSoft water required
True Rotala indica

True Rotala indica

Rotala indica

Intermediate

Compact and delicate Rotala species. Submersed leaves are narrow and turn red to pink. Beautiful red under strong light and CO2. Perfect midground to background accent.

IntermediateStem plantRed

Aquatic Plant FAQ

How much do aquatic plants cost?
Common Rotala and Anubias cost 300-1,000 yen, Bucephalandra 1,000-5,000 yen, and rare wild-collected specimens 5,000-20,000+ yen depending on species.
Can beginners grow aquatic plants?
Anubias Nana and Java Moss require no CO2 injection and grow in low light, making them ideal for beginners. Start with hardy shade-loving plants.
What equipment is needed for aquatic plants?
A tank, LED light, filter, and aqua soil are the basics. For advanced layouts, CO2 injection and high-performance lighting significantly improve growth and coloration.
What should I check when buying aquatic plants?
Ensure leaves are green and healthy, not melting or dying, and free of snails or pests. Tissue-cultured cups are pest-free and reliable.
Why do aquatic plants die?
Insufficient light, CO2, or nutrients are the main causes. Each species has different requirements, so matching the environment to your specific plants is essential.