Soft hornwort
Ceratophyllum submersum
PlantFreshwater
Ceratophyllum submersum resembles C. demersum but has finer, softer leaves. Whorls are less dense. It is often more delicate. It grows quickly and can form dense masses. It prefers calm, nutrient-rich waters. In the aquarium, it helps control algae by absorbing excess nutrients. No CO2 needed. Optimal growth with moderate light.
Recommended parameters
| Parameter | Recommended range |
|---|---|
| Temperature | 10–25 |
| pH | 6–8 |
| GH | 5–20 |
| KH | 3–15 |
| NO₃ | ≤ 40 |
| PO₄ | ≤ 3 |
Care
Difficulty1/5
Dietphotosynthetic
Min. tank20 L
Min. group1
Adult size60 cm
Lifespan2 ans
Temperamentpeaceful
Care notes
Easy to maintain. Temperature 10-25°C, pH 6-8. Moderate light. No CO2. Soft to hard water. Fast growth, trim regularly. Can float or be planted. Compatible with all fish. Avoid strong currents. Ideal for breeding tanks. Absorbs nitrates. Watch for sudden parameter changes.