How to Grow Red Flame Sword
Red Flame Sword
Echinodorus barthii 'Red Flame'
aquatic plantThe Red Flame Sword is a stunning aquatic plant prized for its deep red to crimson coloration, especially under high lighting conditions. It is a popular choice for freshwater aquariums due to its striking appearance and moderate growth rate. This plant serves both aesthetic and functional purposes in planted aquariums.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in warm freshwater aquarium conditions (72-82°F / 22-28°C)
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Growth Stages
Acclimation
1-2 weeksNewly planted specimen may appear pale or stressed; leaves may appear green or only mildly red
Maintain stable conditions, avoid sudden parameter changes. Continue regular fertilization and lighting schedule. Plant will adjust to new environment within 1-2 weeks.
Vegetative Growth
4-8 weeksNew leaves emerge regularly; plant gradually develops deeper red coloration; base becomes more established
Maintain high lighting (8+ hours daily), provide consistent fertilization (liquid and root tabs), ensure adequate CO2 if dosing. Remove any damaged or dead leaves.
Red Coloration Development
Ongoing (4+ weeks to full expression)Established leaves display intense red to crimson pigmentation; plant reaches characteristic appearance; new growth emerges regularly with strong color
Continue high-intensity lighting and fertilization regimen. Iron supplements enhance red coloration. Maintain water parameters: pH 6.0-7.5, KH 3-6, GH 4-8. Perform weekly water changes.
Maturation
Indefinite with proper carePlant reaches full size (12-20 inches tall); foliage is dense and fully colored; may produce flower spikes above water surface
Continue maintenance fertilization and water changes. Prune occasionally to maintain shape and encourage bushier growth. If flowering occurs, pollinate by hand or allow natural pollination if emergent.
Propagation
Variable, occurs naturally with mature plantsMature plants may produce runners with plantlets or send up flowering spikes capable of producing seeds
Allow runners to develop 3-4 leaves before separating from parent plant. Plant new specimens in nutrient-rich substrate. Seeds may be collected and grown in humid conditions.
Common Pests
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Maintain balanced lighting duration (8-10 hours), reduce phosphates, increase water changes, use algae-eating fish or shrimp (Amano shrimp, otocinclus), remove algae manually
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Quarantine new plants, remove snails manually, reduce overfeeding, use snail traps, introduce assassin snails as biological control
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Use all-in-one liquid fertilizers or macro/micro nutrient combinations, add iron supplements for red pigmentation, perform regular water changes, monitor leaf appearance for yellowing or pale spots
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Improve water flow, reduce photoperiod temporarily, increase liquid carbon (Excel/glutaraldehyde), perform 50% water changes, use SAE (Siamese Algae Eater) or manual removal with old toothbrush
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Increase fertilization, ensure adequate KH (calcium), add comprehensive micronutrient supplements, maintain CO2 supplementation
Uses
Aquarium Centerpiece Plant
HouseholdThe Red Flame Sword serves as a striking focal point in freshwater planted aquariums due to its intense red coloration and substantial size. Its vertical growth habit and bold coloring make it ideal for creating visual depth and interest in aquascaping designs. [source]
Fish Habitat and Shelter
WildlifeThe dense foliage provides excellent shelter and spawning sites for aquarium fish, reducing stress and promoting natural behaviors. It also provides grazing surfaces for herbivorous fish and invertebrates. [source]
Water Filtration and Quality
HouseholdAs a rooted aquatic plant, the Red Flame Sword absorbs excess nutrients (nitrogen, phosphorus, potassium) from the water column, helping to reduce algae growth and maintain better water quality. This makes it an excellent natural biofilter in planted tank systems. [source]
Aquatic Garden Design
CraftIts striking red coloration and architectural form make it a centerpiece for artistic aquascaping, particularly in styles emphasizing color contrast and landscape composition. Popular in nature aquariums and Dutch-style planted tanks. [source]
Oxygen Production
HouseholdThrough photosynthesis, the Red Flame Sword produces oxygen during daylight hours, contributing to a healthier aquatic environment for fish and beneficial bacteria. High-light conditions maximize photosynthetic output. [source]
Harvest Tips
Red Flame Sword is not harvested but maintained indefinitely in aquariums. Prune older leaves from the base to encourage new growth and maintain aesthetic appeal. Propagate by separating plantlets from runners or collecting seeds from flower spikes. For aquascaping, selectively remove outer or damaged leaves to shape the plant and maintain vibrant appearance.
Fun Facts
- 🌱 The Red Flame Sword's intense crimson coloration is produced by anthocyanin pigments that become more vibrant under high-intensity lighting and with adequate iron supplementation—similar to how fall leaves turn red in terrestrial plants.
- 🌱 Unlike many sword plants that propagate via runners, the Red Flame Sword primarily produces new plants from runners with multiple plantlets, allowing a single mature plant to establish a small 'family' of clones over time.
- 🌱 This cultivar was selectively bred from Echinodorus barthii for its exceptional red coloration; it is not found in nature and represents decades of aquatic plant horticulture and genetic selection by European and Asian breeders.
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