Echinodorus Parviflorus care guide
Echinodorus Parviflorus (Echinodorus parviflorus) — medium light, 22-28 °C, pH 6.5-7.5, no CO2.
Compiled by Aquairi from published sources · Published · Updated
Overview
Echinodorus Parviflorus (Echinodorus parviflorus) is an aquatic plant of the family Alismataceae, listed in the Aquairi knowledge base as a beginner-level species. It is typically grown under medium light and without obligatory CO2 injection on nutrient-rich aquasoil. A compact sword plant with dark-green, slightly textured leaves that stays manageable in medium-sized tanks. One of the best swords for aquariums that cannot accommodate the massive Amazon Sword.
Taxonomy
- Family: Alismataceae
- Genus: Echinodorus
- Scientific name: Echinodorus parviflorus
- Common synonyms: Tropica Sword, Black Amazon Sword
Habitat
Echinodorus is a genus of New-World aquatic and marsh plants (family Alismataceae) widespread from the southern United States through tropical South America; many cultivated forms are nursery hybrids selected for colour and leaf shape. In the Aquairi knowledge base, populations associated with this form are recorded from South America.
Growth requirements
- Lighting: medium
- CO2: not required
- Temperature: 22-28 °C (72-82 °F)
- pH: 6.5-7.5
- GH: 3-12 °dGH
- Substrate: nutrient-rich aquasoil
- Maximum height: 25 cm
- Growth rate: medium
- Recommended placement: midground
Placement
A heavy root feeder for the midground or background. Nutrient-rich substrate, root tabs and stable parameters drive vigorous growth. Larger varieties require generous spacing. In the Aquairi knowledge base this form is recommended for the midground under medium light and without obligatory CO2 injection, using nutrient-rich aquasoil.
Propagation
Reproduces by adventitious plantlets that develop on flower stalks; once a plantlet has formed several leaves and visible roots it can be separated and planted. Documented propagation techniques for this entry include: horizontal runners, adventitious plantlets.
Common issues
Pale or yellowing new leaves usually indicate iron or other micro-nutrient deficiency; root tabs in nutrient-poor substrates correct most cases.
Propagating Echinodorus Parviflorus (Black Amazon Sword)
Overview
Echinodorus parviflorus, the black amazon sword (a compact form discovered in the Tropica nursery in Denmark in the 1980s), grows as a spreading rosette of dark-green, slightly bullate leaves. It is a marsh and bog plant fully capable of submersed growth, and a heavy root feeder that wants a deep, nutrient-rich substrate.
Because it is a rosette plant, you propagate it from daughter plantlets and crown division rather than by cutting stems. It is one of the best swords for medium tanks that cannot fit the much larger Amazon sword.
Propagation Method
There are two asexual methods. First, adventitious daughter plantlets develop on submerged flowering stems: when an inflorescence forms underwater, plantlets grow instead of flowers. Second, an established clump can be propagated by division of the crown or rhizome.
Step-by-Step
- For plantlets, let a submerged flower stalk develop and wait for young plantlets to form along it.
- Allow each plantlet to grow several leaves and a small root system while still attached.
- Detach the rooted plantlet from the stalk and plant it in nutrient-rich substrate.
- For division, lift a mature plant and split the crown or rhizome into sections, each with roots and leaves.
- Replant each section, burying the roots but keeping the crown at the substrate surface, and add root tabs.
Conditions for Healthy Growth
Echinodorus prefer good light and a deep, nutrient-rich substrate, and most species need tropical to sub-tropical temperatures. They generally tolerate variable water conditions. Additional CO2 is not required but enhances vigorous growth.
Maintenance
Keep the plant in the foreground to midground where its compact rosette suits medium tanks. Remove old or damaged outer leaves at the base, and replenish root tabs periodically to sustain the heavy feeding demand. Under good light it persists reliably across a range of conditions.
Common Challenges
Poor light and a thin or nutrient-poor substrate are the usual reasons a sword fails to thrive or refuses to throw plantlets. If you want plantlets rather than aerial flowers, keep the inflorescence submerged rather than letting it grow emersed.