Crinum calamistratum

Scientific name: Crinum calamistratum

Family: Amaryllidaceae

Usual maximum size in aquariums: 40 - 120 cm (15.75 - 47.24 inch)

014

Recommended pH range for the species: 6.1 - 7.8

Recommended water hardness (dGH): 0 - 18°N (0 - 321.43ppm)

0°C 32°F30°C 86°F

Recommended temperature: 20 - 27 °C (68 - 80.6°F)

Reproduction of the plant: Bulb shoots

Origin (in the wild): Africa

How fast these plants grow: Slow

Recommended substrate: Fine gravel

Demands on lighting: Bright

Ideal placement in a fish tank: Background

Origin

Crinum calamistratum originates from the lush waters of Africa, primarily found in Cameroon. In its natural habitat, it thrives in slow-moving rivers and streams with a sandy or muddy substrate. These conditions offer a nutrient-rich environment that supports the plant’s long, flowing leaves. The plant's resilience in the wild allows it to adapt to varying water conditions, including short periods of drought.

Propagation

Crinum calamistratum propagates primarily through bulb shoots, which emerge from the main bulb when the plant is provided with optimal growing conditions. To propagate successfully, wait until these smaller bulbs have developed roots and gently separate them from the mother plant. Re-plant these bulbs into the substrate, ensuring it is nutrient-rich to support root growth. During the initial planting, avoid burying the entire bulb; leave part of it exposed to prevent rot. While Crinum calamistratum can produce flowers, propagation through seeds is complex and best suited for experienced aquarists. To encourage flowering, provide bright lighting and maintain soft, slightly acidic water conditions. Once flowering begins, it can continue on a regular cycle, adding a unique aesthetic to the aquarium.

Difficulty

Medium. This plant requires time to establish a strong root system for optimal growth. Once settled, it becomes more resilient but may be sensitive to sudden changes in water parameters or relocation. Consistent care and a stable environment are key to its success.

Short Description

Crinum calamistratum is a popular choice for background planting in aquariums due to its elegant, long, and slender leaves that can gracefully reach the water's surface. Under ideal conditions, these leaves can grow up to an impressive 4 feet (~122 cm) in length, creating a beautiful, natural curtain effect in the tank. However, this plant is sensitive to being moved; once planted, it is best to let it grow undisturbed in its chosen spot. Its hardiness allows it to withstand short periods of drought in its natural environment, making it a relatively low-maintenance plant once established.

This plant also proves resistant to fish nibbling, as occasional bites won’t cause lasting damage to its tough leaves. For the best growth results, use a CO₂ system and maintain a low water flow in the aquarium, mimicking its natural habitat. This setup supports healthy root development and helps the plant absorb nutrients efficiently. Although it can adapt to various conditions, Crinum calamistratum truly flourishes in an environment with consistent care, stable water parameters, and regular trimming to prevent overcrowding.