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HC Cuba

Hemianthus callitrichoides

Linderniaceae

📍 South America

Ask Finn

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 (1.2 in). 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.

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Quick Facts

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

Water it likes

ph
5.5–7.0
nitrate
<10 ppm
hardness
1–6 dGH
temperature
68–79°F (20–26°C)

Stats

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Growing in0 tanks