Echinodorus amazonicus Care Guide

Common Name: Amazon Sword
Difficulty Level: Easy
Family: Alismataceae

General Description:

Echinodorus amazonicus, commonly known as the Amazon Sword, is one of the most iconic aquarium plants. Known for its long, broad, bright-green leaves, it provides a lush, natural look and serves as a reliable background centerpiece in planted aquariums. Hardy, adaptable, and fast-growing, this species is excellent for beginners while still appreciated by experienced aquascapers for its bold presence and ability to fill space gracefully.

Care Requirements:

1. Tank Size:

Minimum Tank Size: 20 gallons (75 liters)
Larger tanks are preferred as leaves can grow tall and wide.

2. Lighting Requirements:

Lighting: Low to Moderate

The plant grows well even under lower light, but moderate light supports fuller, stronger leaf development.

3. CO₂ Requirements:

CO₂: Not required

CO₂ can enhance growth speed and leaf size, but it is completely optional.

4. Water Parameters:

Temperature: 22–28°C (72–82°F)
pH: 6.5–7.5
Hardness: Soft to moderately hard

5. Substrate:

Substrate Type: Nutrient-rich substrate recommended

Echinodorus amazonicus is a heavy root feeder. A fertile substrate or root tabs helps maintain strong, healthy growth.

6. Fertilization:

Nutrients: Moderate

Regular nutrient supplementation (especially iron and potassium) improves leaf color and overall vigor.

7. Maintenance:

Growth Rate: Fast

Old leaves can be pruned as needed. The plant grows quickly when well-fed and may require trimming to avoid overshadowing other species.

8. Propagation:

Propagation Method: Runner shoots / plantlets

The plant produces horizontal runners with small plantlets that can be separated and replanted once mature.

9. Placement in Tank:

Placement: Background

Ideal as a dominant background plant thanks to its tall, arching leaves and strong visual presence.

Summary:

Echinodorus amazonicus is a classic and beginner-friendly aquarium plant that brings lush greenery and natural structure to aquascapes. Easy to maintain, fast-growing, and tolerant of a wide range of conditions, it is perfect for anyone looking to fill the background of their tank with a hardy, elegant plant.