

Hygrophila costata, commonly known as Gulf Swampweed or Glush Weed, is a versatile and fast-growing stem plant native to the American tropics and subtropics. Its slender, lanceolate leaves and upright growth habit make it an excellent choice for adding vertical interest and lush greenery to freshwater aquariums. This adaptable species thrives in various water conditions, making it suitable for both novice and experienced aquarists.
Scientific Name: Hygrophila costata
Common Names: Gulf Swampweed, Glush Weed
Origin: American tropics and subtropics
Growth Habit: Fast-growing, upright stem plant
Leaf Characteristics: Slender, lanceolate leaves with vibrant green coloration
Lighting Requirements: Moderate to high intensity
CO₂ Requirement: Not essential; benefits from supplementation
Placement: Background
Water Parameters:
Temperature: 18–30°C (64–86°F)
pH Level: 5.0–7.0
Hardness: Soft to moderately hard water.
Aesthetic Appeal: Adds vertical structure and dynamic movement to aquascapes.
Adaptability: Thrives in various water conditions, suitable for diverse aquarium setups.
Low Maintenance: Requires minimal care once established, ideal for aquarists seeking easy-to-grow plants.
Habitat Enhancement: Provides shelter and breeding grounds for small fish and invertebrates.
Water Quality Improvement: Assists in nutrient absorption, contributing to a balanced aquarium ecosystem.
Lighting: Provide moderate to high-intensity lighting to promote healthy growth and vibrant coloration.
CO₂ and Fertilization: While not mandatory, CO₂ supplementation and regular dosing with macro- and micronutrients enhance growth and vitality.
Substrate: Plant in nutrient-rich substrate to support robust root development.
Water Flow: Prefers gentle water movement to prevent debris accumulation on leaves.
Propagation: Easily propagated by cutting healthy stems and replanting them into the substrate.
Can Hygrophila costata thrive without CO₂ supplementation?
Yes, it can grow without CO₂, but supplementation enhances growth and leaf density.
How tall does Hygrophila costata grow?
Under optimal conditions, it typically reaches heights of 25–60 cm (10–24 inches).
Is Hygrophila costata suitable for beginners?
Absolutely. Its adaptability and low maintenance make it ideal for novice aquarists.
How often should I trim Hygrophila costata?
Regular trimming every few weeks helps maintain its shape and encourages bushier growth.
Can it be grown emersed?
Yes, Hygrophila costata can adapt to emersed conditions in high-humidity environments and may produce small white flowers.
Thanks for subscribing!
This email has been registered!