Hairy Water Clover
Marsilea hirsuta
Marsilea hirsuta is an aquatic fern that produces four-leaflet leaves resembling a clover. The leaves are slightly hairy (hence 'hirsuta') and measure 1–2 cm across. It spreads via stolons and can quickly cover the substrate. In the aquarium, it prefers moderate to high light and adapts to varied conditions. It can form a dense carpet or remain more sparse depending on lighting. It is ideal for the foreground and natural aquascapes. Growth is moderate and it does not require CO2, but benefits from it.
Recommended parameters
| Parameter | Recommended range |
|---|---|
| Temperature | 18–26 |
| pH | 6–7.5 |
| GH | 2–12 |
| KH | 1–5 |
| NO₃ | ≤ 20 |
| PO₄ | ≤ 2 |
Care
Care notes
Parameters: temperature 18–26°C, pH 6–7.5, GH 2–12, KH 1–5. Nitrates < 20 mg/L, phosphates < 2 mg/L. Moderate to high light (0.3–0.5 W/L), CO2 optional (max 20 mg/L). Nutrient-rich substrate recommended. Compatible with all peaceful fish and shrimp. Occasional trimming to maintain height. Avoid fish that dig up stolons. Can be planted in small pieces spaced 3–5 cm apart for a uniform carpet.