Fast growing aquarium plants are some of the most valuable tools in aquascaping. They not only create lush, natural-looking layouts quickly but also play a critical role in preventing algae and stabilising new aquariums.
These plants absorb excess nutrients from the water, outcompete algae, and help establish a balanced ecosystem in both low-tech and CO₂ aquariums.
Whether you’re setting up your first tank or building a dense aquascape, fast-growing species can dramatically improve success rates.
Why Fast Growing Plants Matter
Fast growing plants are essential because they:
- Absorb excess nutrients quickly
- Reduce algae outbreaks
- Stabilise new aquarium cycles
- Provide shelter for fish and shrimp
- Help establish biological balance
- Create instant visual impact
In newly set up aquariums, they act as a natural filtration system.
Top Fast Growing Aquarium Plants
1. Hornwort (Ceratophyllum demersum)
One of the fastest growing aquarium plants available.
Benefits:
- Extremely rapid growth
- No substrate required
- Excellent algae control
- Great for beginners
Hornwort is ideal for new tanks that need quick stability.
2. Water Wisteria (Hygrophila difformis)
A highly adaptable and fast-growing stem plant.
Benefits:
- Fast vertical and bushy growth
- Can be planted or floated
- Very nutrient hungry
- Helps prevent algae
It is excellent for filling background space quickly.
3. Hygrophila polysperma
One of the fastest stem plants in the hobby.
Benefits:
- Extremely fast growth rate
- Easy to propagate
- Low to medium light tolerant
- Strong nutrient absorption
Ideal for quick aquascape establishment.
4. Rotala rotundifolia
A popular aquascaping stem plant.
Benefits:
- Fast growth under good conditions
- Attractive red/orange hues (with CO₂)
- Great for background layering
- Responds well to trimming
Common in Nature Aquarium layouts.
5. Vallisneria (Vallisneria spiralis / gigantea)
A fast-growing background plant that spreads via runners.
Benefits:
- Rapid horizontal spread
- Creates dense jungle backgrounds
- Very hardy
- Low maintenance
Perfect for natural, flowing aquascapes.
6. Java Moss (Taxiphyllum barbieri)
A versatile and fast-growing moss.
Benefits:
- Grows in almost any condition
- No CO₂ required
- Excellent for shrimp tanks
- Attaches to rocks and wood
It provides natural texture and shelter.
7. Duckweed (Lemna minor)
A floating plant with extremely fast growth.
Benefits:
- Rapid nutrient absorption
- Excellent for algae control
- Provides shade
- Easy to grow
However, it can spread aggressively if not controlled.
8. Floating Water Sprite (Ceratopteris thalictroides)
A fast-growing and flexible plant.
Benefits:
- Can be floating or planted
- Rapid nutrient uptake
- Great for new tanks
- Provides fish cover
Fast Growing Plants for Low-Tech Aquariums
In low-tech tanks (no CO₂), these plants perform best:
- Hornwort
- Java Moss
- Vallisneria
- Water Wisteria
- Duckweed
They require minimal maintenance and adapt well to low light conditions.
Fast Growing Plants for CO₂ Aquariums
In CO₂-injected aquariums, fast growth becomes even more dramatic:
- Rotala species
- Hygrophila polysperma
- Water Wisteria
- Amazon Frogbit (floating)
- Eleocharis (with CO₂ support)
These plants respond quickly to high light and nutrients.
How Fast Growing Plants Prevent Algae
Algae thrives when nutrients are available but plants are weak.
Fast growing plants help by:
- Consuming excess nitrates and phosphates
- Blocking light from algae spores
- Stabilising biological balance
- Competing directly with algae for resources
A tank with strong plant growth rarely suffers severe algae issues.
Best Use Strategy for Fast Growing Plants
New Aquariums:
- Use heavily in the first 2–4 weeks
- Allow them to establish biological balance
- Trim later as slower plants take over
Mature Aquariums:
- Use as background fillers
- Trim regularly to maintain shape
- Combine with slow-growing focal plants
Common Mistakes with Fast Growing Plants
Avoid these issues:
- Letting floating plants completely cover the surface
- Not trimming fast growers regularly
- Overcrowding the aquarium too early
- Ignoring nutrient demand increase
- Using only fast growers without structure plants
Balance is key for long-term aquascaping success.
Maintenance Tips
Fast growing plants require:
- Regular trimming (weekly or bi-weekly)
- Consistent fertilisation
- Stable lighting schedule
- Adequate water flow
Trimming also encourages bushier, healthier growth.
Final Thoughts
Fast growing aquarium plants are essential for both beginners and advanced aquascapers. They act as natural stabilisers, algae controllers, and foundation builders for healthy aquatic ecosystems.
By using species like Hornwort, Water Wisteria, Vallisneria, and Hygrophila, you can quickly establish a thriving aquarium that supports more delicate plants later on.
In aquascaping, fast growers are not just temporary fillers—they are the biological engine that helps every successful aquarium reach stability.
Why Choose Aquassi Ltd?
At Aquassi Ltd, we supply a wide range of healthy aquarium plants, aquasoils, CO₂ systems, fertilisers, LED lighting, driftwood, natural rocks, filtration equipment, and aquascaping tools.
Whether you’re building a new aquarium or refining an advanced aquascape, Aquassi Ltd provides everything you need to grow lush, balanced, and algae-free planted tanks.
