Cryptocoryne lutea
Cryptocoryne lutea
Also known ascrypt lutea · Cryptocoryne walkeri 'Lutea'
Water parameters
Light and nutrients
Substrate type: nutrient rich. Propagation: runners.
Substrate compatibility
| Substrate | pH effect | Nutrient load |
|---|---|---|
| Aquasoil (ADA Amazonia) | lowers pH | very high |
| Mineralized clay substrate (Seachem Fluorite) | neutral / inert | moderate |
| Dirted tank (mineralized topsoil) (DIY soil substrate) | slightly acidic | very high |
With fish
Origin and habitat
Native to Sri Lanka, growing in shallow, slow-moving streams and river margins. The species (Cryptocoryne lutea, sometimes classified as C. walkeri var. lutea) is a small to medium Cryptocoryne with narrow, elongated leaves in shades of yellow-green to olive. The name 'lutea' means yellow, referring to the warm, golden-green coloring that distinguishes this species from the darker brown-green tones of C. wendtii or C. beckettii. Leaves are 10–15 cm long and 1–2 cm wide, with smooth to slightly wavy margins. The compact size and warm coloring make it useful for midground planting where it provides tonal contrast against darker green species. Found in the aquarium trade since the mid-20th century, it remains a popular and widely available Cryptocoryne, though it's sometimes mislabeled as C. walkeri or confused with juvenile C. beckettii by retailers.
Care notes
Easy care, similar to other common Sri Lankan Cryptocorynes. Thrives in low to moderate light with no CO2 injection. Tolerates pH 6.0-8.0 and soft to moderately hard water. Plant in substrate with root tabs or nutrient-rich soil; root feeding is the primary nutrient uptake pathway for all Cryptocorynes, so root-zone nutrition matters more than water column dosing. Growth is moderate once established, with roughly one new leaf every 1-2 weeks. The yellowish-green coloring provides a warm tone that stands out next to darker green plants (like Anubias or Java fern) and red-leaved species in a mixed planting. Under very low light, the yellow tones fade and leaves become uniformly olive-green; moderate light (30-50 PAR at substrate level) brings out the warmest color. Like all Cryptocorynes, susceptible to melt when first planted or when parameters shift. Propagation by runners; daughter plants form at the end of underground stolons over time. A group of 5-7 plants creates a cohesive midground planting within a few months. Temperature: 22–28°C. Hardy and forgiving once settled. Pairs well with darker Cryptocorynes like C. wendtii 'Brown' or C. beckettii for a natural, varied Cryptocoryne garden that mimics a Sri Lankan stream margin.