How To Care For Micro Sword Live Aquarium Plant: A Complete Guide
When it comes to designing aquascapes or adding natural greenery to your aquarium, the Micro Sword plant (Lilaeopsis brasiliensis) is one of the most popular choices for aquarists. This small, grass-like plant is ideal for creating lush, carpeted aquarium floors and provides an aesthetic that resembles a well-manicured lawn underwater. But, as with any plant, knowing how to properly care for it is essential to ensure it thrives.
In this complete guide, we will explore the essential care requirements, the benefits of adding Micro Sword to your aquarium, and common challenges you might face with this plant. By the end, you'll have all the knowledge you need to successfully incorporate Micro Sword into your aquascape.
What is Micro Sword?
Micro Sword (scientific name Lilaeopsis brasiliensis) is a small, foreground aquarium plant native to South America. It is well-known for its grass-like appearance, featuring thin, green leaves that grow in clusters and form a lush carpet on the aquarium substrate. Micro Sword is often used in aquascaping as a ground cover plant due to its ability to grow densely and spread out over time.
Unlike many aquarium plants, Micro Sword doesn't grow tall and is perfect for creating a green, low-maintenance foreground. As it spreads, it can create a natural, lawn-like effect that mimics the look of a meadow.
Ideal Water Conditions for Micro Sword
Micro Sword is a hardy plant that can tolerate a wide range of water conditions, but to achieve the best results, it is important to mimic its natural habitat as closely as possible. Here are the ideal water parameters:
1. Water Temperature
Micro Sword thrives in tropical water temperatures. Its optimal temperature range is between 72°F to 82°F (22°C to 28°C). Temperatures outside this range can slow down growth or cause the plant to become stressed.
2. pH Level
Micro Sword prefers a neutral to slightly acidic pH range, ideally between 6.5 to 7.5. A pH level outside this range may cause nutrient deficiencies or make it harder for the plant to thrive.
3. Water Hardness
Micro Sword grows best in soft to moderately hard water, with a range of 4-10 dGH. Water that is too hard can cause mineral imbalances, and excessively soft water may make the plant susceptible to certain deficiencies.
4. Water Flow
Micro Sword prefers moderate water flow. While it can tolerate gentle currents, too much flow can damage the plant, uproot it, or prevent it from rooting effectively. Aim for a gentle to moderate flow in the aquarium, especially around the plant’s base.
Lighting Requirements for Micro Sword
Lighting is one of the most important factors in ensuring healthy growth for Micro Sword. While it does not require high-intensity lighting, providing the right amount of light will help it establish a dense, vibrant carpet.
1. Light Intensity
Micro Sword requires moderate to high light levels. Low light conditions can result in slow growth and sparse carpeting. However, too much light can lead to excessive algae growth, so it’s important to balance lighting carefully.
A light intensity of 2-3 watts per gallon of aquarium water is ideal for most setups, but this can vary depending on the size of the aquarium, the type of lighting, and the setup as a whole.
2. Light Duration
Provide 8-10 hours of light per day to keep your Micro Sword healthy. Like other aquarium plants, the amount of light is crucial for photosynthesis and overall growth. You can use a timer to regulate the lighting period and maintain consistency.
3. Light Spectrum
The light spectrum should be full-spectrum (6,500K) for the best results, as it replicates the light that plants receive in their natural habitat. A full-spectrum light helps in the efficient growth of leaves and stems and prevents the plant from becoming leggy.
Substrate for Micro Sword
Micro Sword needs a substrate that is nutrient-rich and allows for good root growth. It can be planted in both aquarium soil and gravel, but using a nutrient-rich substrate will yield the best results. If you're using inert substrates, such as gravel, consider adding root tabs or liquid fertilizers to provide necessary nutrients to the plant.
1. Soil Substrate
A soft, nutrient-rich soil substrate is ideal for growing Micro Sword. It will allow the plant to root easily and absorb nutrients more efficiently. You can either use aquarium-specific plant soil or natural soils, which help with root development.
2. Gravel or Sand Substrate
Micro Sword can also grow in gravel or sand, but to promote healthy root growth, you may need to add fertilizer tablets beneath the substrate. This is important as Micro Sword feeds primarily through its roots, and it benefits from a steady nutrient supply.
Planting Micro Sword in Your Aquarium
Planting Micro Sword is relatively simple, but it requires attention to detail to ensure it grows well and forms a dense carpet.
1. Prepare the Substrate
Before planting, ensure that your substrate is well-prepared. If you’re using soil, ensure it is adequately deep (around 2 inches). If you’re using gravel or sand, supplement with root tabs to provide the necessary nutrients.
2. Planting the Rhizomes
Unlike many plants that have a central root ball, Micro Sword spreads from its rhizomes. Gently plant the individual stems or small rhizomes, ensuring that the rhizome (the base of the plant) stays above the substrate. Don’t bury the rhizome itself, as it could rot. Plant the stems or small sections in clusters to form a dense carpet.
3. Spacing
Micro Sword is a slow-grower, and it may take time to fill the aquarium floor. Plant the stems 2-4 inches apart initially to give them enough space to spread. As the plant grows, it will naturally fill in the gaps.
Fertilization and Nutrient Requirements
To keep your Micro Sword thriving, regular fertilization is key. Although it is a hardy plant, it still needs nutrients to grow and spread.
1. Root Fertilizers
Micro Sword benefits from root tabs placed in the substrate, especially if you are using gravel or sand. These tabs release nutrients over time and ensure the plant gets all the necessary minerals, including iron and potassium.
2. Liquid Fertilizers
If you’re growing Micro Sword in a low-tech tank, you can supplement its nutrition with liquid fertilizers that contain macronutrients like nitrogen, phosphorus, and potassium. These will be absorbed by the plant through its leaves and help support overall growth.
3. CO2 Injection
Micro Sword is a moderate to high-light plant, and CO2 injection can help accelerate growth and improve the appearance of the carpet. While it can survive without CO2, adding it will enhance overall plant health and make it flourish faster. If you have a high-tech aquarium with CO2, you may notice quicker coverage and more vibrant green growth.
Common Problems and Troubleshooting
While Micro Sword is relatively easy to care for, aquarists may encounter some common issues. Here are a few potential problems and how to address them:
1. Slow Growth
If your Micro Sword is growing very slowly, it may be a sign that the light is insufficient, or the plant is not getting enough nutrients. Try increasing the light intensity, or if you’re using an inert substrate, consider adding root tabs to ensure the plant has access to essential nutrients.
2. Algae Overgrowth
Algae growth can occur, especially when lighting is too intense or the tank’s nutrients are out of balance. If this happens, reduce the lighting duration, ensure your water parameters are in check, and consider adding algae-eating fish or snails like Amano shrimp or Nerite snails to help manage the algae.
3. Yellowing Leaves
Yellowing leaves are often a sign of nutrient deficiencies, particularly a lack of iron or nitrogen. Try supplementing with a liquid fertilizer that contains micronutrients or adding root tabs to provide the plant with the necessary minerals.
4. Plant Floating
If you notice your Micro Sword floating to the surface, it might be due to insufficient root anchoring. Be sure that the rhizomes are properly planted and rooted into the substrate. In case this happens, gently replant the stems to ensure they stay in place.
Tank Mates and Aquascaping Tips for Micro Sword
Micro Sword is compatible with a wide range of aquarium species, but there are a few things to keep in mind:
1. Tank Mates
Micro Sword can coexist with peaceful fish species, including Tetras, Guppies, Corydoras, and Otocinclus. However, avoid placing it in tanks with large, aggressive fish that may uproot or damage the plant.
2. Aquascaping Ideas
Micro Sword can create beautiful carpets in the foreground of your aquarium. It pairs well with Anubias, Java Ferns, Cryptocoryne species, and Dwarf Swords. These plants have similar lighting and water requirements and will complement the look of your aquascape.
Conclusion
Micro Sword is a fantastic plant for aquascaping, offering aquarists a way to create lush, grassy carpets on their tank’s floor. With the right water conditions, lighting, and care, you can enjoy this beautiful and hardy plant as a centerpiece of your aquarium.
By following the tips in this guide, you'll be able to keep your Micro Sword healthy and thriving, whether you’re a beginner or an experienced aquarist. Enjoy the beauty of this elegant carpet plant in your tank! Happy aquascaping!
