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Datasheet
| Aquarium Compatible | yes |
| Plant Outdoor | unknown |
| Plant Emersed Growth | yes |
| Plant Growth | medium |
| Temperature Tolerance | 8°C / 46.40°F - 30°C / 86.00°F |
| Temperature | 20°C / 68.00°F - 26°C / 78.80°F |
| Carbonate Hardness | 5-21 kh |
| pH Value | 6-9 ph |
| Light | low-high |
| Carbon Dioxide (CO2) | 5-40mg/lmg/l |
| Nitrate (NO3-) | 10-50mg/lmg/l |
| Phosphate (PO43-) | 0.1-3mg/lmg/l |
| Potassium (K+) | 5-30mg/lmg/l |
| Iron (Fe) | 0.01-0.5mg/lmg/l |
General Description
Cryptocoryne crispatula var. flaccidifolia, a member of the Araceae family, is a variety of Cryptocoryne crispatula characterized by long, narrow, smooth-undulate leaves that range in color from green to reddish-brown. The plant produces flaccid leaves when grown emersed, with submerged leaves typically growing to a length of 20-50 cm and a width of 5-12 mm. It is distinguishable from other varieties such as var. tonkinensis and var. balansae by its leaf width and unique leaf morphology.
Aquarium Suitability
Considered an easy-to-care-for plant, Cryptocoryne crispatula var. flaccidifolia is suitable for aquariums and serves well as a background, midground, or specimen plant. It can thrive in taller tanks, adapting to a range of water conditions, including harder water, and prefers moderate to intensive lighting for optimal growth.
Demands and Hardiness
Cryptocoryne crispatula var. flaccidifolia falls under the category of easy difficulty in terms of care. It can withstand temperatures between 20-26°C and has a wide temperature tolerance range of 8-30°C. The plant's growth is considered medium, and it reproduces through subterranean runners, rhizome division, and splitting to form dense clusters.
Aquascaping & Usage
With its grass-like appearance due to its narrower leaves compared to var. balansae, Cryptocoryne crispatula var. flaccidifolia complements Nature Aquarium layouts beautifully. Its versatility as a background or midground plant adds aesthetic appeal to aquascapes.
Propagation
Propagation of Cryptocoryne crispatula var. flaccidifolia is achieved through various methods such as subterranean runners, rhizome division, and cutting off daughter plants. These methods can be utilized to expand the plant population within an aquarium setting.
Habitat and Distribution
This plant species is native to regions of South Thailand, Vietnam, and Southern China (Guangxi), where it is commonly found submerged in rivulets and rivers. It is worth noting that plants often sold under the names "Cryptocoryne retrospiralis" and "Cryptocoryne tonkinensis" in the trade are likely misidentified and actually belong to Cryptocoryne crispatula var. flaccidifolia.