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Syngonanthus cf. inundatus

Syngonanthus cf. inundatus

Syngonanthus cf. inundatus is an alluring midground stem plant that thrives with a medium growth rate and high light requirements. Its delicate appearance and vibrant green hues make it a captivating focal point in a well-maintained aquascape.

Taxonomy
Class:Liliopsida
Order:Poales
Family:Eriocaulaceae
Genus:Syngonanthus
Species:Syngonanthus cf. inundatus
Formerly known as: 

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Water Temperature

18 - 29 °C

pH Value

4 - 7

Water type

Freshwater

Light

High

CO2

Low - High

Expected height

15 cm

Expected width

8 cm

KH

0 - 8 dKH

Species description

Geographic Origin and Habitat: No additional source-verified editorial notes are available about geographic origin and habitat for Syngonanthus cf. inundatus. Consult this record's parameters and sources.
Taxonomy and Genetics: No additional source-verified editorial notes are available about taxonomy and genetics for Syngonanthus cf. inundatus. Consult this record's parameters and sources.
Physical Structure: No additional source-verified editorial notes are available about physical structure for Syngonanthus cf. inundatus. Consult this record's parameters and sources.
Colour and Texture: No additional source-verified editorial notes are available about colour and texture for Syngonanthus cf. inundatus. Consult this record's parameters and sources.

Care, breeding and tankmates

Lighting & CO2: For Syngonanthus cf. inundatus, extremely high lighting is paramount for robust growth and optimal coloration; a high PAR value is essential to prevent stem elongation and color fading. Consistent CO2 injection is equally critical, as a generous and steady supply facilitates efficient photosynthesis and prevents stunted growth, thereby maintaining the plant's compact form and vitality. Without adequate light and CO2 levels, the plant will decline, exhibiting deficiency symptoms and becoming highly susceptible to algae outbreaks. It is advisable to maintain photoperiods of 8-10 hours daily to balance healthy growth with algae prevention.
Nutrition & Substrate: While Syngonanthus cf. inundatus can absorb nutrients from the
Water Chemistry: Water chemistry is a critical determinant for the successful cultivation of Syngonanthus cf. inundatus, which thrives in soft, acidic water conditions. Maintaining a pH between 4.0 and 7.0 and a carbonate hardness (KH) between 0 and 8 is essential to mimic its natural habitat and avert osmotic stress. Water that is too hard or alkaline can impede nutrient uptake and induce "melting" or rapid decay of the leaves. It is highly advisable to use remineralized reverse osmosis (RO) water with specific aquatic plant salts to achieve and maintain stable, ideal parameters, thus avoiding sudden fluctuations that can be detrimental to the plant's health.
Space Management & Placement: Syngonanthus cf. inundatus is most effectively utilized as a midground plant in an aquascape, where its height and delicate structure can establish a compelling focal point or provide an intriguing contrast with differently shaped plants. Planting it in dense groups optimally showcases its beauty, creating an effect reminiscent of a lush carpet or a thick bush. It is crucial to ensure that each stem receives ample light and nutrients, preventing overcrowding which can lead to shading and the deterioration of lower foliage. Strategically placing shorter or differently shaped plants in front or behind can help create visual depth and natural transitions within the aquarium layout.
Pruning: Regular pruning is indispensable for maintaining Syngonanthus cf. inundatus in a compact form and stimulating bushier, denser growth, thereby preventing elongation and the loss of lower leaves. When the plant reaches the water surface or becomes excessively tall, the stem tops can be trimmed, encouraging lateral branching from the nodes below. Healthy apical cuttings can then be replanted directly into the substrate to propagate the plant and enhance the density of the existing cluster. It is paramount to use sharp scissors to avoid damaging the delicate stems and ensure healthy regrowth.
Risks & Diseases: Syngonanthus cf. inundatus is notoriously sensitive and can be susceptible to various risks in a suboptimal aquarium environment. Fluctuations in water parameters, nutrient deficiencies (particularly iron and potassium), and insufficient lighting are primary stressors that can lead to yellowing, deterioration, or "melting" of the leaves. It is also vulnerable to algal growth if conditions are not perfectly balanced, especially under high light and CO2 without adequate fertilization. The introduction of heavy metals or the presence of ammonia/nitrites can rapidly compromise its health, making constant monitoring and rigorous maintenance absolutely crucial.

Geographic Origin and Distribution

This species originates from: Brazil, South America.

Origin

Amazon, Orinoco, and Guianas

Plant profile

Placement
No verified data available
Botanical form
No verified data available
Growth
No verified data available
Substrate
No verified data available
Column fertilization
No verified data available
Root fertilization
No verified data available
Trimming
No verified data available
Propagation
No verified data available
Nutrients
No verified data available
Sensitivity
No verified data available
Layout role
No verified data available

Image gallery

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

Related species

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Last updated: 08/10/2026
Syngonanthus cf. inundatus Care Guide & Tank Setup | Atlarium