Cryptocoryne wendtii Red

Cryptocoryne wendtii Red is the most colorful of the common wendtii varieties, producing wavy, lance-shaped leaves that range from reddish-bronze to deep burgundy-brown depending on lighting intensity and nutrient availability. The reddish coloration develops most richly under moderate to moderately bright light with adequate iron and micronutrient availability. In low light conditions, the leaves tend toward greenish-brown, though the reddish tint remains present. Like its brown and green counterparts, this variety originates from Sri Lanka and shares the same robust, adaptable growth habit. It forms compact rosettes that spread gradually via runners, creating natural-looking groupings suitable for foreground to midground planting. The warm, reddish tones of this crypt make it a popular choice for aquascape layouts that use color contrast as a design element, pairing beautifully with bright green mosses, lime-green stem plants, and pale sand substrate. Its demands are minimal — it is fully capable of thriving in low-tech tanks without CO2 injection — making the dramatic leaf color available even to beginners. Root feeding via tabs beneath the rhizome is the most effective method for sustaining the rich coloration over time. Like all Cryptocorynes, it may exhibit crypt melt when moved to a new environment, but recovers reliably from the rhizome within a few weeks. Once established, it is among the most durable and long-lived aquarium plants available.

Planting Plant with the rhizome at or just above the substrate surface. Excellent in fine sand, gravel, or aqua soil. Insert a root tab 2–3 cm below the planting site in nutrient-poor substrates to support iron-dependent red coloration.

Lighting Low to moderate light (15–35 µmol/m²/s PAR) supports the best reddish coloration. Very low light causes the leaves to revert toward greenish-brown. Avoid excessively bright direct light.

CO2 and Fertilization CO2 is not required. Regular root tabs every 3–4 months maintain iron and nutrient levels. Supplement with a liquid fertilizer containing iron chelate (Fe-EDTA) to sustain red pigmentation.

Water Conditions Maintain pH 5.5–8.0, temperature 20–28°C. Broad water parameter tolerance. Performs well in both soft and moderately hard water.

Crypt Melt Management Leaf melt after relocation is common. Remove dissolving leaves quickly to maintain water quality. Healthy rhizomes recover within 2–4 weeks.

Propagation Detach runner-grown daughter plants once 3+ leaves have developed. Replant at the same depth in desired locations.

Common Issues Fading red color usually indicates iron deficiency. Add liquid iron supplement or new root tabs. Algae on leaf surfaces occurs with high light and poor nutrient balance.