Dwarf Baby Tears (Hemianthus callitrichoides), often referred to as "HC," is a popular and challenging aquarium plant.
It is native to Cuba and is known for its tiny, vibrant green leaves and creeping growth habit. HC is often used in "carpeting" aquascapes, where it forms a lush and low carpet of greenery across the substrate.
Achieving a successful HC carpet can be demanding, requiring high light levels, CO2 supplementation, and nutrient-rich substrate.
It is a freshwater plant and not suitable for saltwater aquariums.
HC is appreciated for its ability to provide oxygenation and cover for small fish and invertebrates.
Recommended Water Parameters
Optimal water temperature: 22°C to 28°C (72°F to 82°F).pH level: HC prefers slightly acidic to neutral pH, typically between 6.0 and 7.0.
Water hardness (dGH): Soft to moderately hard water, with a range of 2 to 15 dGH.
Monitoring and maintaining stable water parameters are crucial for its success.
Water Type
HC is a freshwater plant.Water Changes
Regular water changes are essential to maintain water quality and nutrient balance. A typical water change might involve replacing 10-20% of the aquarium water every 1-2 weeks.Aquarium Lighting
HC requires high-intensity lighting to thrive. LED or T5 lighting systems with a color temperature in the range of 6500K to 10000K are preferred.Duration of daylight
Lighting duration: 8-10 hours a day is recommended for healthy growth.Air Pump
An air pump is not necessary for HC.Filter
Filtration is preferred but not mandatory.Heater
A heater may be required to maintain the recommended temperature range.Is an additional source of CO2 needed
CO2 supplementation is often necessary for optimal growth.Roots
It does not have traditional roots; instead, it anchors itself to the substrate.Stems
HC forms dense mats of tiny leaves and has creeping stems.Reproduction
HC reproduces by runners and can be propagated by planting cuttings.Growth rates
Growth rates can be slow without ideal conditions, but under proper care, it can carpet an aquarium over time.Lifespan
With proper care, HC can thrive for several years in an aquarium.Source of food
HC is not a primary food source for fish but can provide shelter and microhabitats for small organisms that fish may consume.Interesting Facts
Achieving a healthy HC carpet is considered an advanced challenge in the aquarium hobby due to its demanding care requirements.
Proper pruning and maintenance are crucial to prevent overgrowth and ensure the carpet remains lush and healthy.
HC is a favorite among aquascaping enthusiasts for creating stunning underwater landscapes with intricate details.