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Hygrophila polysperma 'Rosanervig'

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Overview

Hygrophila polysperma 'Rosanervig' is a popular aquarium plant known for its light green leaves with bright pink veins, creating a striking contrast. This plant is a great choice for adding color and texture to the background of an aquarium.

Position in Aquarium

  • Location: Behind and to the left of the volcano, extending towards the center of the aquarium.
  • Grouping: Plant a group of about 5-6 stems to establish a lush backdrop that enhances the visibility of other features.

Care Requirements

Lighting

  • Intensity: Medium to high
  • Duration: 10-12 hours per day to promote vibrant growth and maintain leaf variegation.

Water Conditions

  • Temperature: 22-28°C (72-82°F)
  • pH: 6.0-7.5
  • Hardness: 2-15 dKH

Substrate

  • Type: Prefers a nutrient-rich substrate to support fast growth and healthy root development.

CO2

  • Addition: Beneficial but not essential
  • Rate: 5-15 mg/L can significantly enhance growth rate and leaf coloration.

Fertilization

  • Macro Nutrients: Regular additions are important for sustained growth.
  • Micro Nutrients: Supplementing with iron and other trace elements helps maintain the distinct pink coloration of the veins.

Pruning and Maintenance

  • Pruning Frequency: Every 4-6 weeks or as needed to control growth and encourage bushier development.
  • Trimming Technique: Trim the top shoots to promote denser growth. A top shoot refers to the uppermost part of the stem, which is typically the newest and most vigorous growth. Cutting this part encourages the plant to produce lateral branches, leading to a fuller appearance.

Propagation

  • Method: Easy through cuttings; simply cut the top of a stem and replant in the substrate.
  • Growth Rate: Fast, which makes it suitable for filling in background areas quickly.

Common Issues

  • Lighting Needs: Insufficient light can lead to leggy growth and less vibrant leaf color.
  • Nutrient Deficiencies: Watch for signs of nutrient deficiencies such as pale or yellowing leaves.

Additional Tips

  • Plant Density: Planting in dense groups can help prevent algae growth by shading the substrate.
  • Regular Check-ups: Regularly check and adjust plant positions to ensure optimal exposure to light and nutrients.
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