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HC Cuba
Hemianthus callitrichoides
Family: Linderniaceae
📍 Cuba
Hemianthus callitrichoides 'Cuba' (HC Cuba) holds the record as the smallest-leaved aquatic carpeting plant, with each leaf barely 0.5 mm across and stems rarely exceeding 3 cm. Under optimal conditions of high light, CO2, and soft water it forms an impossibly dense, bright-green lawn that is the holy grail of foreground carpets in aquascaping. Extremely demanding and unforgiving of parameter fluctuations, it is best suited to experienced, high-tech setups.
Keeping this species
- co2
- Essential
- light
- Very high (150–250 PAR); will melt under insufficient light
- placement
- Foreground carpet; nano foreground accent
- substrate
- Fine-grain aquasoil
- growth rate
- Moderate to fast under ideal conditions
- propagation
- Spreads via creeping stolons
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Tips from the community 💡
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Water it likes
- ph
- 5.5–7.0
- nitrate
- <10 ppm
- hardness
- 1–6 dGH
- temperature
- 68–79°F (20–26°C)
Natural Habitat Temperature
72°F — 81°F seasonal range · (Jan low, Jun high)