Rotala Rotundifolia Aquarium Plant Guide

Introduction

Looking to add a splash of vibrant colour and dynamic growth to your aquarium? Rotala Rotundifolia is one of the most beloved plants in the aquarium hobby. Known for its adaptability and eye-catching red hues under optimal conditions, this plant is a favourite among both beginners and advanced aquascapers. Did you know Rotala Rotundifolia can thrive in low-tech tanks yet transform into a fiery red masterpiece with the right care? Read on to discover how to bring out the best in this versatile plant.

Plant Profile

  • Scientific Name: Rotala rotundifolia
  • Common Names: Dwarf Rotala, Roundleaf Rotala
  • Origin: Southeast Asia, where it grows along the edges of rice paddies and shallow wetlands.

Appearance

Rotala Rotundifolia features slender stems with small, rounded leaves that transition from green to pink, orange, or red depending on lighting and nutrients. It grows quickly, reaching heights of 20–40 cm, making it perfect for midground or background placement. Its bushy, cascading growth is ideal for creating a natural, lush aquascape.

Care Requirements

Lighting

  • Optimal Intensity: Moderate to high light.
  • Lighting Type: LEDs or T5/T8 fluorescent tubes.
  • Key Tip: For rich red tones, invest in high-intensity lighting (PAR values above 50).

Water Parameters

  • pH Range: 6.0–7.5 (slightly acidic to neutral).
  • Temperature: 22–28°C.
  • Hardness: 2–8 dGH (soft to moderately hard).

Nutrient Requirements

Regular fertilisation is crucial for vibrant growth. Use a balanced liquid fertiliser with iron and micronutrients to enhance red colouration.

  • Root Tabs: Beneficial for nutrient-rich substrates.

CO2

CO2 supplementation is optional but highly recommended. Injecting CO2 significantly boosts growth rates, promotes compact form, and intensifies red hues.

Water Flow

Rotala Rotundifolia thrives in moderate water flow, which helps distribute nutrients and CO2 evenly. Avoid excessively strong currents that may damage the delicate stems.

Propagation

Propagating Rotala Rotundifolia is simple:

  1. Cut Healthy Stems: Use sharp scissors to cut a stem 4–6 inches long.
  2. Remove Lower Leaves: Strip leaves from the bottom inch of the stem.
  3. Replant the Cuttings: Insert the bare stem into the substrate.

With proper care, the cuttings will root within a week and start growing new shoots.

Compatibility

Suitable Tank Setups

  • Planted Tanks: Perfect for aquascaping with vibrant plant layouts.
  • Shrimp Tanks: Offers shrimp a safe place to graze and hide.
  • Community Tanks: Ideal for peaceful species like tetras and rasboras.

Compatible Tankmates

  • Fish: Neon Tetras, Harlequin Rasboras, Otocinclus.
  • Invertebrates: Amano Shrimp, Cherry Shrimp, Nerite Snails.

Companion Plants

Rotala Rotundifolia pairs well with:

  • Foreground Carpets: Dwarf Hairgrass or Monte Carlo.
  • Tall Plants: Vallisneria or Limnophila sessiliflora.

Troubleshooting

Common Issues

  • Melting Leaves: Often caused by a sudden shift in water parameters. Acclimate plants slowly when introducing them to a new tank.
  • Algae Growth: Manage lighting duration (8–10 hours daily) and avoid nutrient imbalances.
  • Slow Growth: Increase CO2 levels and dose liquid fertilisers regularly.
  • Leggy Stems: Prune aggressively and increase light intensity to encourage bushy growth.

Additional Tips

  • Pruning: Regularly trim stems to maintain a dense, bushy appearance and prevent overcrowding.
  • Spacing: Plant stems a few centimetres apart to allow light penetration and healthy growth.
  • Water Changes: Weekly water changes help maintain stable water chemistry and nutrient levels.

Conclusion

Rotala Rotundifolia is a stunning and low-maintenance addition to any aquarium. Its fast growth and ability to adapt to various setups make it a go-to plant for beginners, while its vibrant colour and aquascaping potential appeal to seasoned hobbyists. Add Rotala Rotundifolia to your tank today and watch your aquascape come to life!

FAQs

  • How do I maintain Rotala Rotundifolia’s red colour?
    Provide high-intensity lighting, CO2 supplementation, and iron-rich fertilisers for vibrant red tones.
  • Can Rotala Rotundifolia grow without CO2 injection?
    Yes, but it will grow slower, and the colours may remain green rather than turning red.
  • Is Rotala Rotundifolia beginner-friendly?
    Absolutely! It adapts well to low-tech tanks, though advanced care techniques can unlock its full potential.

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