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Anubias Nana Care: The Complete Aquarium Plant Guide for Beginners

By PlantSolve Editorial Team ·

Anubias barteri var. nana

Anubias Nana is a hardy, slow-growing, low-light epiphyte perfect for beginner aquariums and aquascaping.

Anubias Nana attached to driftwood in a lush freshwater aquarium
  • Light

    Thrives in low to medium light conditions.

  • Temperature

    22-28°C (72-82°F)

  • Growth

    very slow

  • pH range

    6.0-7.5

Quick Answer

Anubias Nana is a slow-growing, low-light aquatic plant that must be attached to rocks or driftwood, never buried in substrate. It thrives in stable freshwater conditions with low to medium lighting.

Overview

Anubias Nana is arguably the most resilient plant in the aquarium hobby. Native to the streams of West Africa, it is an epiphyte, meaning it naturally grows on rocks and wood rather than in soil. Its thick, dark green leaves provide excellent cover for shy fish and resting spots for slow-swimming species.

Its slow growth rate makes it an ideal choice for aquascapers who want a low-maintenance setup. It can adapt to a wide range of water parameters, making it beginner-friendly.

  • Anubias Nana is a true aquatic plant that is perfect for low-tech setups.
  • Its leathery leaves make it resistant to most herbivorous fish, such as goldfish.
  • It is commonly used as a foreground or midground plant in freshwater aquariums.
  • The plant helps improve water quality by absorbing excess nitrates.

Botanical Profile

The botanical name is Anubias barteri var. nana. It is a slow-growing aquatic herb with dark green, broad leaves that are thick and leathery to the touch.

The plant features a rhizome—a horizontal stem that grows along the surface. This rhizome is the most vital part of the plant and should never be buried.

  • Anubias Nana is small, typically reaching only 2-4 inches in height.
  • It can be propagated easily by cutting the rhizome into pieces, ensuring each piece has at least 3-4 healthy leaves.
  • The plant can flower underwater in healthy aquarium conditions, producing a small white spathe.

Light and Placement

Anubias Nana prefers low to medium light. It is highly adaptable but thrives best when shaded from direct, intense light to prevent algae accumulation on its leaves.

Place it attached to driftwood, rocks, or other hardscape features in the foreground or midground of your aquarium.

  • Avoid placing the plant directly under high-intensity lighting.
  • If you notice Green Spot Algae on the leaves, move the plant to a shaded area or reduce your light duration.
  • Good water circulation around the rhizome is essential for preventing rot.

Care and Maintenance

The most important rule for Anubias is to keep the rhizome exposed to the water column. If buried, it will rot. Attaching it to hardscape is the standard method.

Maintenance is minimal. Occasional pruning of dead or decaying leaves is all that is required to keep the plant healthy.

  • Remove decaying leaves promptly to maintain water quality.
  • Clean the leaves gently if they become covered in algae or detritus.
  • Ensure the aquarium water has good oxygenation and filtration.

Propagation Methods

Propagation is straightforward and usually done by division. Use a clean, sharp pair of scissors or a razor blade to cut the rhizome.

Each section must have a piece of the rhizome and several leaves to survive. Once cut, reattach the pieces to rocks or wood using fishing line or glue.

  • Sterilize tools before cutting to prevent infection.
  • Allow the cut section to heal for a few minutes before attaching.
  • The plant will slowly re-establish its root system on the new surface.

Common Problems and Troubleshooting

Anubias Nana is generally hardy, but 'melting' or rhizome rot is the most common issue. This is usually due to poor water flow or burying the rhizome.

Algae issues, specifically Green Spot Algae, are common due to the plant's slow growth rate.

  • Monitor for signs of rhizome decay (mushy texture, bad smell).
  • Ensure regular water changes to maintain stable parameters.
  • Adjust light levels if algae becomes a persistent problem on the leaves.

Recommended next actions

Use calculators and guides to turn this plant profile into a practical care routine.

Structured Plant Data

Plant Data Profile

Care values below are generated from the plant JSON fields so users and crawlers can read the structured plant profile directly on the page.

Growth Characteristics

Growth Rate

very slow

Mature Height

2-4 inches

Mature Spread

3-6 inches

Life Cycle

Perennial

Flowering Season

rare (can flower submerged)

Container Friendly

yes

Indoor Capable

yes

Environmental Parameters

Parameter Recommended Survivable
Temperature 22-28°C (72-82°F) 20-30°C (68-86°F)
Humidity N/A (Aquatic) N/A
Soil PH 6.0-7.5 5.5-8.0

Lighting

Description

Thrives in low to medium light conditions.

Nutrients

Nitrogen Demand

low

Phosphate Demand

low

Potassium Demand

low

Micronutrient Notes

Absorbs nutrients primarily through the water column.

Fertilizer Frequency

Liquid fertilizer once every 2 weeks.

Organic Options

Root tabs can be used if planted in substrate (though not recommended for the rhizome).

Relationships

  • Light

    Requirement | Strength 7

    Low light is preferred; excessive light encourages algae growth on the leaves.

  • Rhizome Exposure

    Requirement | Strength 10

    The rhizome must be exposed to water flow; burying it will cause rot.

  • Green Spot Algae

    Vulnerability | Strength 8

    Slow growth makes it susceptible to Green Spot Algae in high-light conditions.

Anubias Varieties & Requirements

VariationLight RequirementGrowth RateDifficulty
Anubias NanaLowVery SlowEasy
Anubias Nana PetiteLow to MediumVery SlowEasy
Anubias BarteriLowSlowEasy

Troubleshooting Guide

1 Rhizome Rot

Cause: Buried in substrate or poor water flow

Remove from substrate, attach to hardscape, and ensure water movement around the rhizome.

2 Algae on Leaves

Cause: Too much light or excess nutrients

Move to a shaded area or reduce the daily light photoperiod.

3 Melting Leaves

Cause: Nutrient deficiency or transplant shock

Ensure liquid fertilization; remove dead leaves to encourage new growth.

Glossary of Terms

Rhizome
The thick, horizontal stem of the plant from which roots and leaves grow. This part must remain above the substrate.
Epiphyte
A plant that grows on the surface of another object, such as a rock or piece of wood, rather than rooting in soil.
Aquascaping
The craft of arranging aquatic plants, rocks, stones, and driftwood in an aesthetically pleasing manner within an aquarium.

Scientific References

  1. Anubias barteri var. nana - Aquatic Plant Central
  2. Anubias Genus Care Guide - Tropica

Written by PlantSolve Editorial Team · Published · Reviewed by FishZone Editorial Team

Frequently Asked Questions

Is Anubias Nana safe for all aquarium fish?
Yes, Anubias Nana is completely non-toxic and safe for all freshwater fish, shrimp, and snails. Its tough, leathery leaves actually make it an excellent choice for tanks with herbivorous fish like goldfish.
How do I attach Anubias Nana to rocks?
Use cyanoacrylate gel superglue or fishing line to gently tie the plant to the hardscape. Over the course of a few weeks, the roots will naturally attach themselves to the surface.
Can I bury the roots in the substrate?
You can bury the small, hair-like roots, but the thick, horizontal stem (rhizome) must remain exposed above the substrate. If the rhizome is buried, the plant will suffocate and die.
Do I need CO2 for Anubias Nana?
No, Anubias Nana is a true low-tech plant and does not require injected CO2 to grow. It thrives entirely on ambient CO2 and basic liquid fertilizers.
Why are there green spots on the leaves?
This is Green Spot Algae (GSA). Because Anubias leaves grow very slowly, they are prone to algae under high light. Move the plant to a shaded area or reduce your daily light duration.
Why is my Anubias melting?
Melting is usually caused by burying the rhizome in the gravel, insufficient water flow, or a sudden, drastic change in water parameters (such as a pH shock) after a large water change.
Why is the rhizome turning brown and mushy?
A mushy rhizome indicates severe rot, almost always caused by lack of water circulation. You must immediately cut away the rotting section to save the healthy remainder of the plant.
How much light is too much for my Anubias?
Excessive light will quickly cover this slow-growing plant in algae. To estimate a safer daily photoperiod while supporting growth, use our Sunlight Calculator.