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True Rotala indica (Rotala indica)

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True Rotala indica

Intermediate

Rotala indica

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.

Growing Difficulty
Intermediate
Temperature
22〜28℃
Size
10-25cm
Watering
CO2 + liquid fert (iron is key for red coloring)

About

Rotala indica (the 'true' form) is a stem plant in the family Lythraceae, native to Asia. Also known as a rice-paddy weed, in the aquarium it is loved for its charming form of rounded, oppositely arranged leaves. Historically, plants traded under the name 'Rotala indica' have included other species (such as Ammannia), so the 'true' qualifier denotes the genuine Rotala indica. Under ample lighting, CO2, and nutrients, the leaf tips and stems take on reddish tones, adding soft color to the background when grown in groups. Growth is relatively fast and it is easily propagated by trimming and replanting. Manageable even for beginners depending on conditions, achieving clean coloration requires care, so it suits intermediate hobbyists. It prefers soft, slightly acidic to neutral water.

Size of the True Rotala indica

The True Rotala indica grows to 10-25cm.

Temperature & humidity for the True Rotala indica

The ideal temperature for the True Rotala indica is 22〜28℃.

Basic Info

Origin

Asia

Size

10-25cm

Temperature

22〜28℃

Watering & Fertilizer

CO2 + liquid fert (iron is key for red coloring)

Growing Tips

Lighting

With enough light the leaf tips and stems take on a red tint. The higher the light, the stronger the red, so plant it where light reaches well even in the background.

CO2 & Fertilizer

CO2 injection and liquid fertilizer are the basis for colour. Iron in particular is the key to red, so replenish it regularly.

Water Temperature & Quality

Aim for 22–28°C and slightly acidic to neutral soft water. Given the right conditions, even beginners can handle it.

Trimming & Propagation

Growth is fairly fast, and it propagates easily by trimming and replanting. Grown in a group it adds soft colour to the background.

Notes

Prone to bleaching without nutrients. Supply N and K adequately

IntermediateStem plantRedCO2 recommended

True Rotala indica FAQ

QWhat is the growing difficulty level for True Rotala indica?
A

Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.

QWhat is the ideal temperature for True Rotala indica?
A

The ideal temperature for True Rotala indica is 22〜28℃. Avoid sudden temperature changes and maintain a stable environment.

QHow large does True Rotala indica get?
A

The mature size of True Rotala indica is 10-25cm. This may vary slightly depending on cultivation environment and individual differences.

QHow should I water and fertilize True Rotala indica?
A

True Rotala indica: watering & fertilizer — CO2 + liquid fert (iron is key for red coloring). Aim for appropriate frequency and amount.

QWhat is the typical price for True Rotala indica?
A

The price of True Rotala indica varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.

Last updated: June 24, 2026

References & Sources

Edited & verified by: GrowerDirect Editorial Team

The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.

Primary sources

Taxonomy & Authority

Accepted name: Rotala indica (Willd.) Koehne

Authority databases: GBIF · POWO

Nomenclature follows global taxonomic authority databases.

Regulations & Conservation Status

Not CITES-listed

Sources: Ministry of the Environment Designated Invasive Species List (Invasive Species Act) / CITES Appendix II listed plant taxa (family and genus level)

Regulations may change. Always verify the latest information with the relevant authorities.

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