Bacopa salzmannii ‘Purple’ Care Guide

Common Name: Bacopa Purple
Difficulty Level: Moderate
Family: Plantaginaceae

General Description:

Bacopa salzmannii ‘Purple’ is a highly decorative stem plant valued for its unique purple to pinkish-red coloration, especially on the undersides of its leaves and stems. When grown under strong lighting and nutrient-rich conditions, it develops vibrant hues that add a striking accent to planted aquariums. Its upright growth and relatively thick stems make it well suited for midground to background placement in colorful aquascapes.

Care Requirements:

1. Tank Size:

Minimum Tank Size: 10 gallons (38 liters)

2. Lighting Requirements:

Lighting: Moderate to High

Higher light levels are essential to maintain strong purple coloration. Under lower light, the plant tends to appear greener.

3. CO₂ Requirements:

CO₂: Recommended

Can grow without CO₂, but supplementation greatly improves coloration, growth speed, and leaf density.

4. Water Parameters:

Temperature: 22–28°C (72–82°F)
pH: 6.0–7.5
Hardness: Soft to moderately hard

5. Substrate:

Substrate Type: Nutrient-rich preferred

While it absorbs nutrients from the water column, a fertile substrate supports stronger root development and overall health.

6. Fertilization:

Nutrients: Moderate to High

Requires consistent macro- and micronutrients. Iron plays an important role in enhancing purple and reddish tones.

7. Maintenance:

Growth Rate: Moderate

Regular trimming encourages compact growth and prevents stems from becoming leggy.

8. Propagation:

Propagation Method: Stem cuttings

Cut healthy stems and replant them directly into the substrate; they root easily.

9. Placement in Tank:

Placement: Midground to Background

Ideal for adding color contrast and vertical structure in planted aquariums.

Summary:

Bacopa salzmannii ‘Purple’ is an eye-catching plant that rewards attentive care with rich purple hues and healthy, upright growth. With strong lighting, stable CO₂, and consistent fertilization, it becomes a standout feature in colorful aquascapes. Best suited for aquarists with some experience.