Hemianthus micranthemoides (Pearlweed)
Hemianthus micranthemoides, commonly known as Pearlweed, is a fast-growing, fine-leaf stem plant widely used in Aquascaping for its versatility and ease of shaping. With regular trimming, it can be maintained as a low, dense carpet or allowed to grow taller as a midground to background bush, making it one of the most flexible plants in planted aquariums.
Growth behaviour: Pearlweed responds quickly to trimming. Frequent cuts encourage compact, bushy growth, while less maintenance allows it to grow taller and more open.
Trim and replant tops to quickly fill in open areas and increase density.
Why Aquascapers Like It
- Extremely versatile—can be used as carpet, bush, or background filler
- Small, bright green leaves add fine texture and freshness
- Fast growth helps establish layouts quickly
- Very forgiving and adaptable to a wide range of conditions
- Excellent for beginners and experienced aquascapers alike
Care & Placement
- Placement: Foreground to background (depending on trimming)
- Lighting: Low to high (more light = tighter, more compact growth)
- CO₂: Optional, but recommended for denser growth and faster recovery after trimming
- Fertilization: Regular dosing supports vibrant colour and strong tips
- Trimming: Trim often to maintain shape and prevent legginess
- Flow: Low to moderate
Aquascaping Tips
- Plant in small groups for faster fill-in and better control.
- Use as a transition plant between carpets and taller stems.
- Excellent for creating a soft, natural look around hardscape.
Plant Specs
| Category |
Details |
| Type |
Stem Plant |
| Difficulty |
Easy |
| Growth Rate |
Fast |
| Light |
Low to High |
| CO₂ |
Optional |
| Placement |
Foreground to Background |
| Temperature |
20–28°C |
| pH Range |
~6.0–7.5 |
Pearlweed is highly adaptable and responds well to trimming. Focus on consistent maintenance to keep the growth form you prefer.
