Eichhornia crassipes
Pontederia crassipes
Eichhornia crassipes is an aquarium plant belonging to the Pontederiaceae family, characterized by a fast growth rate and ideal for placement in the midground.
Temperatura da água
12 - 33 °C
Valor de pH
5 - 8
Tipo de água
Água doce
Luz
Alta
CO2
Média - Alta
GH
0 - 20 dGH
KH
0 - 21 dKH
Descrição da espécie
Geographical Origin and Habitat: This fascinating aquatic species has its geographical origin in the warm tropical regions of Asia and South America, where it inhabits clear river systems with weak to moderate current. It is commonly found both submerged and partially emersed along sandy or muddy banks. Additionally, its occurrence is highly associated with shaded banks and shallow water basins.
Taxonomy & Genetics: From a taxonomic point of view, it belongs to the Pontederiaceae family and is assigned to the Eichhornia genus. Its genetics reflect a high degree of adaptation to seasonal variations in water and chemical parameters of its native waters, assuring its resilience.
Physical Structure: The physical structure of the plant is characterized by a rosette botanical form with well-proportioned and elastic stems or rosettes. Under proper lighting conditions, it develops a stable root system capable of anchoring firmly into the riverbed.
Color & Texture: The color of the leaves presents as a bright and natural green, with translucent shades and fine textures that increase the perception of visual depth. The leaf texture is smooth or slightly wrinkled depending on aquarium conditions.
Cuidado, criação e companheiros de tanque
Lighting & CO2: Optimal lighting to support the plant's development ranges from medium to high, depending on the desired leaf density. Constant CO2 injection is recommended to support effective photosynthesis and prevent tissue decay.
Nutrition & Substrate: The plant benefits from a rich, porous substrate coupled with a balanced liquid fertilization in the
Water Chemistry: The ideal water chemistry includes a slightly acidic or neutral pH (5.0 - 8.0) and a moderate carbonate hardness KH (0.0 - 21.0). The optimal water temperature must be kept stable between 12.0 and 33.0 °C.
Space Management & Placement: Regarding space management, the plant should be positioned in the midground, spacing the stems adequately to avoid shaded areas. It is ideal for creating dynamic layouts in natural aquascaping.
Pruning: Pruning must be performed regularly by topping the upper part or thinning the densest clumps with suitable scissors. Propagation is successfully achieved through runners replanted directly into the soil.
Risks & Diseases: The main risks are related to the development of parasitic algae on old leaves and tissue necrosis if essential nutrients are lacking. Good filtration and regular water changes prevent most diseases.
Origem e distribuição geográfica
This fascinating aquatic species has its geographical origin in the warm tropical regions of Asia and South America, where it inhabits clear river systems with weak to moderate current. It is commonly found both submerged and partially emersed along sandy or muddy banks. Additionally, its occurrence is highly associated with shaded banks and shallow water basins.
Origem
Sul e Sudeste AsiáticoAmazônia, Orinoco e GuianasExtra-Amazônica América do Sul
Perfil da planta
- Posicionamento
- Plano intermediário
- This is strictly a floating plant and must be placed on the water surface. Its long, feathery purple-black roots hang down into the water column, providing excellent shelter for fry and shrimp. It needs open space at the surface and should not be crowded by other floating species. It is ideal for open-top aquariums or ponds.
- Forma botânica
- Roseta
- It forms rosettes of glossy, rounded, leathery green leaves with distinctive spongy, bulbous leaf stalks that provide buoyancy. The submerged roots are long, dense, and typically dark purple or black, creating a beautiful contrast. Under high light in open setups, it produces spectacular, showy pale purple flowers with a central yellow spot.
- Crescimento
- Rápida
- The growth rate of water hyacinth is famously explosive under strong light and rich nutrients. It multiplies rapidly via runners, quickly covering the entire surface of an aquarium if left unchecked. Constant removal of excess plants is mandatory to prevent it from blocking light to submerged species. It is one of the fastest-growing aquatic plants known.
- Substrato
- Alta
- As a true floating plant, Eichhornia crassipes does not require any substrate for anchoring. Instead, it develops a dense, feathery mass of dark roots that hang freely in the water column to absorb dissolved nutrients. While it does not root in the soil, its extensive root system serves as an excellent hiding place for fish fry and microfauna. Substrate type and depth are entirely irrelevant to the successful cultivation of this species.
- Fertilização de coluna
- Recomendada
- Liquid fertilization is highly effective, as the plant relies entirely on its submerged roots to extract nutrients from the water. Dosing comprehensive fertilizers, especially those rich in nitrogen and potassium, will fuel its rapid growth. Iron supplements are also beneficial to keep the leaves deep green. It acts as a major competitor for column nutrients.
- Fertilização radicular
- Nenhuma
- Root fertilization in the substrate is completely irrelevant for this species, as it is a strict floater. It does not root in the substrate under any normal conditions. All required nutrients must be available in the water column.
- Corte
- Regular
- Trimming involves simply removing entire daughter plants or older, yellowing rosettes from the surface. The extensive root system can be trimmed back if it becomes too long or unsightly, though this may temporarily slow growth. Regular thinning out is critical to ensure light penetrates to the plants below. Do not let it form a dense, impenetrable mat.
- Propagação
- Estolões
- Propagation occurs naturally and prolifically through vegetative reproduction. The mother plant sends out horizontal stolons (runners) that quickly develop into new daughter rosettes. Once a daughter plant has formed a few leaves and roots, the runner can be cut to separate them. In ideal conditions, this process happens continuously.
- Sensibilidade
- Moderada
- The plant is highly susceptible to melting if the air above the water is too humid and stagnant, which often occurs under tight aquarium lids. It strongly prefers open-top tanks with good air circulation. It is also sensitive to extremely low nutrient levels, which cause rapid deterioration. Additionally, it requires intense illumination to maintain its bulbous stalks.
- Função de layout
- Plano intermediário
- In the aquarium, it is used exclusively as a floating surface plant to provide shade, absorb excess nutrients, and offer a root jungle for small fish. Its dark roots add a wild, natural aesthetic to the upper levels of the tank. It is heavily utilized in breeding setups or ponds where nutrient export is a primary goal. It must be managed carefully.
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