The flamingo-leaved Cryptocoryne (Cryptocoryne sp. 'flamingo') is a truly captivating aquatic plant. It belongs to the monocotyledonous family and is semi-submerged. Unlike traditional papyrus plants, although its origin is not artificially created, its unique growth pattern and leaf color are the result of artificial cultivation. This plant was introduced by the German Dennerle company and quickly gained popularity in the European aquarium industry, being hailed as the "star" among papyrus plants.
The name "Flamingo" for this type of grass comes from the color of its leaves in water, resembling the feathers of a flamingo. Since Dennerle Company has not disclosed the detailed process of improvement or cultivation, its origin remains a topic of speculation in the aquarium community. Based on my speculation, Dennerle might have artificially controlled certain types of grass (such as Cryptocoryne wendtii) to cause mutations, then through tissue culture and artificial cultivation, selected the most visually attractive varieties, and ultimately created this new variety with a highly impactful visual effect.
The flamingo hornwort not only blooms but also has the ability for sexual reproduction, hence it is also commonly known as Cryptocoryne flamingo. Its leaves exhibit diverse variations in different growth environments. For instance, in low-light conditions, the leaves of the flamingo are usually light green; while the newly grown leaves are pink. The green leaves typically have a lanceolate shape, while the pink leaves are more curly, possibly the result of artificial mutation. If cultivated in a well-lit environment, the leaves of the flamingo will turn red and become more curly, resembling a colorful red octopus.
In addition, the leaves of the flamingo grass can also exhibit various colors and morphological variations, including pink, purple-red, brown, and even tea green, dark brown, etc. The underside of the leaves is usually pinkish, while the stems are brownish-red and vary in length.
The cultivation techniques of flamingo grass:
pH value
The ideal pH range for flamingo grass is 6.7 to 7.1. Water with a pH within this range is most conducive to its healthy growth. It is worth noting that overly acidic water (with a low pH value) can cause the leaves of flamingos to melt. This usually occurs due to excessive CO₂ concentration or the acidification of water caused by using new black soil. Therefore, when maintaining, special attention should be paid to the changes in pH value to avoid overly acidic water.
Water hardness
The flamingo grass also has certain requirements for water hardness. To make the leaves of the flamingo more plump and colorful, it is recommended to keep the TDS value (total dissolved solids) between 160 and 180. A higher TDS value helps improve the shape of the leaves, making them thicker and shinier. If the water is too soft, the leaves may become longer and the growth rate may increase, but the overall effect will be poorer.
If you want to increase the hardness of the water quality, you can use a specialized GH enhancer to raise the TDS value without affecting the pH and KH values. The APL aquatic plant laboratory has launched a GH enhancer, and the effect is very remarkable.
Control of flowing water
The flamingo rush prefers still water or water with a gentle flow. Excessive water flow will place a burden on its root system and affect its growth and development. Therefore, it is recommended to maintain a moderate water flow and avoid direct impact of strong water flow on the leaves and roots of the flamingo rush. This can be achieved by adjusting the flow rate of the water pump or filter, ensuring that the water flow is not too intense.
Bed selection
The flamingo grass requires certain conditions for the substrate. It is recommended to use black soil as the substrate material, as new black soil has a better ability to reduce acidity and helps stabilize the pH value. However, new black soil may cause significant fluctuations in the pH value. Therefore, it is best to first dilute its acid-reducing effect by fertilizing the water to ensure a stable pH value before planting. Another option is to use old black soil and add root fertilizers to replenish the soil's nutrients, which can also ensure the healthy growth of flamingos.
Planting subsoil
Flamingo grass is suitable for growing in black soil beds. Since the new black soil has a strong acid-reducing ability, it is recommended to first dilute the acid-reducing capacity through the water-cultivation process to ensure a stable pH value before planting. This way, the planting process is safer. If using old black soil, adding root fertilizers is also a good choice.
Light intensity
The flamingo grass grows best in moderate to low light conditions. We once tried to plant it in strong light, but found that the growth of the flamingos was inhibited. The leaves not only tended to "fall over" but also caused algae problems. Therefore, it is best to avoid strong light and choose an appropriate light intensity to allow the leaves of the flamingos to fully expand and display their beautiful posture.
Water replacement method
Flamingos are highly sensitive to changes in water quality and temperature. When changing the water, extra caution is required. It is recommended to carry out the water change in small amounts over multiple sessions, which can reduce drastic fluctuations in water quality and TDS values and avoid unnecessary stress on the plants.
Fertilization method
In terms of fertilization, the flamingo grass requires a rather specific type of liquid fertilizer. It is recommended to use a low-nitrogen and low-phosphorus liquid fertilizer, combined with growth hormones to enhance the absorption of leaves and roots. Once the flamingo grass has stabilized its growth, a moderate amount of root fertilizer containing nitrogen and phosphorus can be added to supplement its nutrient supply.
Control of carbon dioxide
The flamingo grass is quite sensitive to carbon dioxide. Therefore, do not blow up the CO₂ bubbles too large; otherwise, it will cause the water to become too acidic, which will affect the growth of the plants.
Common questions about raising flamingos:
Why do flamingo feathers melt?
The melting of flamingo grass leaves is usually caused by water quality issues, especially the instability of pH value and TDS. It is necessary to ensure that the environmental pH value is between 6.7 and 7.1, and avoid excessive CO₂ concentration and overly acidic water. Only by providing a stable environment can flamingos grow healthily.
Why do the feathers of flamingos have holes in them?
Leaf holes are usually a sign of leaf rot. Besides water quality issues, they may also be related to the growth of algae. By placing algae-removing organisms, it is possible to help clean the algae in the water and keep the water clean, which can help reduce the damage to the leaves.
How to choose a flamingo?
When choosing flamingos, larger specimens are usually more stable. Therefore, it is recommended to select larger plants, as they are easier to adapt to the new environment and grow steadily. If you have any doubts about purchasing flamingos, you can go to a professional aquatic plant store or laboratory for selection to ensure you get healthy flamingos.
The flamingo rush is a highly ornamental artificially modified aquatic plant, highly favored for its bright colors and unique shape. Although its cultivation is quite challenging, with careful care and proper regulation, it can still display its distinctive charm in an aquarium.