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PlantFreshwaterIntermediate

Mayaca sellowiana

Mayaca sellowiana

Mayaca sellowiana is a delicate, fast-growing stem plant, ideally suited for midground placement in planted aquariums. Its needle-like leaves and bright green coloration create a dense and lush effect, adding intricate texture to any aquascape.

Taxonomy
Class:Liliopsida
Order:Poales
Family:Mayacaceae
Genus:Mayaca
Species:Mayaca sellowiana

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Water Temperature

18 - 30 °C

pH Value

4.5 - 7

Water type

Freshwater

Light

Medium to High

CO2

High

Expected height

40 cm

Expected width

10 cm

KH

0 - 6 dKH

Species description

Mayaca sellowiana is native to South America, where it thrives in various freshwater aquatic habitats, including slow-moving rivers, swamps, ditches, and flooded areas. This species is typically found in waters with low pH values, often associated with peaty substrates rich in organic detritus. Its presence is common in tropical and subtropical regions, indicating a preference for warm and stable conditions. Belonging to the family Mayacaceae, Mayaca sellowiana is a member of a relatively small genus, often considered a "living fossil" due to its primitive characteristics. Mayacaceae are closely related to other aquatic monocots and are known for their specialization in freshwater environments.

Care, breeding and tankmates

This species prefers soft and acidic water, with an ideal pH range between 4.5 and 7.0 and a carbonate hardness (KH) between 0.0 and 6.0. Maintaining the stability of these parameters is more important than achieving specific values at the extremes of the range. Water temperature should be kept between 18.0 and 30.0 °C, although the plant shows optimal growth at higher temperatures, typical of its natural habitats. Mayaca sellowiana is generally hardy, but it can be susceptible to nutrient deficiencies if water column fertilization is inadequate, resulting in pale leaves or stunted growth. Algae can colonize its delicate leaves in cases of imbalances between light and nutrients.

Geographic Origin and Distribution

This species originates from: South America.

Origin

Amazon, Orinoco, and GuianasExtra-Amazon South America

Plant profile

Placement
Midground

This aquatic species is typically utilized as a midground to background bush in aquariums. Its growth habit makes it ideal for creating a lush, continuous grouping that adds depth to the aquascape. It should be planted in small portions spread evenly to encourage proper expansion and filling of the designated area.

Botanical form
Stem

Mayaca sellowiana presents a distinctive botanical structure characterized by its dense, slightly shorter needle-like foliage. When grown emersed, it may look quite different compared to its fully submersed aquatic form. In the aquarium environment, it adapts to the water conditions by producing foliage that is perfectly suited for submerged photosynthesis and structural stability.

Growth
Fast

Under lower light intensities, the growth rate of Mayaca sellowiana remains relatively slow to moderate. However, when cultivated with high lighting, CO2 injection, and a rich nutrient profile, its growth accelerates noticeably. It will develop side shoots rapidly, quickly covering the available space and requiring more regular maintenance.

Substrate
Low
Column fertilization
Recommended

Liquid fertilization is highly recommended to supplement the nutrient uptake of Mayaca sellowiana directly from the water column. A comprehensive liquid fertilizer that includes essential micro and macronutrients will greatly support the health of its delicate foliage. Regular and measured dosing becomes particularly important in high-energy aquariums to avoid any nutritional deficiencies.

Root fertilization
None

As a plant that develops a fine root system, it draws significant nourishment directly from the substrate. Utilizing a nutrient-rich aquasoil or inserting high-quality root tabs will significantly enhance its vitality and growth rate. Robust root fertilization is a key factor in achieving a dense, healthy, and resilient plant grouping.

Trimming
Occasional

Trimming Mayaca sellowiana is a straightforward process that helps maintain its desired shape and density. Stems can be topped and replanted to encourage bushier sideways growth. It is also crucial to regularly remove any older or decaying plant material to ensure optimal light penetration and overall hygiene.

Propagation
Cuttings

The propagation of Mayaca sellowiana occurs naturally and effectively within a healthy aquarium environment. Stem cuttings can simply be removed from the main plant and directly inserted into the substrate. Even relatively small cuttings or runner sections possess the capability to establish themselves and form new colonies.

Sensitivity
Moderate

Mayaca sellowiana is generally considered a hardy species, capable of tolerating a fairly wide range of water parameters. It does not typically exhibit extreme sensitivity to standard aquarium medications or minor chemical fluctuations. Nevertheless, care should be taken to maintain a balanced ecosystem, as slow-growing or shaded parts can become susceptible to algae accumulation.

Layout role
Midground, Nano

In the art of aquascaping, Mayaca sellowiana primarily functions to provide a dense, textural background or midground element. Its unique structural appearance offers an excellent visual contrast when placed adjacent to rocks, driftwood, or broader-leafed species. Ultimately, it helps to seamlessly blend different hardscape features and softens the overall aesthetic of the tank.

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 06/16/2026
Mayaca sellowiana Care Guide & Tank Setup | Atlarium