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PlantFreshwaterIntermediate

Mayaca fluviatilis

Mayaca fluviatilis

Mayaca fluviatilis is a fast-growing stem plant, perfect for the midground of an aquarium, valued for its dense, fine-textured foliage. It thrives under medium to high light conditions, showcasing vigorous growth and vibrant coloration.

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

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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

30 cm

Expected width

10 cm

KH

0 - 6 dKH

Species description

Native to the tropical and subtropical regions of the Americas, Mayaca fluviatilis is widely distributed from the southeastern United States down to South America. It typically inhabits clear, slow-moving freshwater environments, often found along the edges of rivers, ponds, and swamps, where it can grow both submerged and emersed. This extensive geographical range highlights its adaptability to a variety of natural aquatic habitats. Mayaca fluviatilis belongs to the Mayacaceae family, being the most commonly cultivated species of this small monocotyledonous group in aquariums. Closely related to the Xyridaceae, Mayacaceae are characterized by their delicate, three-petaled flowers and slender stems.

Care, breeding and tankmates

This species is remarkably adaptable to a wide temperature range, from 18.0 to 30.0 C, but prefers the middle range for optimal growth. It requires soft, acidic water, with an ideal KH between 0.0 and 6.0 and a pH between 4.5 and 7.0. Stability of these parameters is more critical than absolute values, and excessively hard or alkaline water can inhibit growth or cause health issues for the plant. Mayaca fluviatilis is generally robust, but it can suffer from iron chlorosis if deficient in iron, manifesting as lighter or yellowish leaves. Insufficient lighting or nutritional imbalances can lead to thinning and decay of the lower leaves.

Geographic Origin and Distribution

This species originates from: Tropical and subtropical Americas (USA to South America).

Origin

North AmericaAmazon, Orinoco, and GuianasExtra-Amazon South AmericaCentral America and Caribbean

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 fluviatilis presents a distinctive botanical structure characterized by its soft, needle-like green leaves on trailing stems. 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 fluviatilis 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
Medium
Column fertilization
Recommended

Liquid fertilization is highly recommended to supplement the nutrient uptake of Mayaca fluviatilis 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 fluviatilis 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 fluviatilis 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 fluviatilis 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, Background

In the art of aquascaping, Mayaca fluviatilis 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 fluviatilis Care Guide & Tank Setup | Atlarium