Myriophyllum verticillatum, commonly known as Whorled Watermilfoil, is a submerged aquatic plant species found in freshwater environments. It is highly valued for its delicate and finely divided foliage, which creates a beautiful, feathery appearance in aquariums and ponds. Here is a detailed description and care guide for Myriophyllum verticillatum:

Description:

Myriophyllum verticillatum features long, slender stems with whorls of finely divided leaves arranged around the stem. The leaves are typically light green to reddish-green, providing an attractive contrast in the aquarium. The foliage is densely packed, giving the plant a bushy and feathery appearance. Under ideal conditions, the plant can grow to a height of 10-20 inches (25-50 cm).

Care Guide:

Lighting: Myriophyllum verticillatum requires moderate to high lighting conditions. Provide at least 2-3 watts per gallon of full-spectrum light to promote healthy growth and vibrant foliage.

Water Parameters: Maintain a water temperature between 20-28°C (68-82°F). The pH level should be slightly acidic to slightly alkaline, ranging from 6.5-8.0. Myriophyllum verticillatum can tolerate a wide range of water hardness.

Substrate: It can root in various substrates, including gravel, sand, or mud. A nutrient-rich substrate can promote better growth and development.

Nutrient Requirements: Myriophyllum verticillatum benefits from regular nutrient supplementation, particularly with iron and micronutrients. Liquid fertilizers or root tabs can be used to provide essential nutrients. Carbon dioxide (CO2) supplementation is not necessary, but it can enhance growth if desired.

Water Flow and Oxygenation: Moderate water flow is beneficial for Myriophyllum verticillatum, as it helps distribute nutrients and prevents stagnant conditions. It also aids in oxygenation of the water, which is important for the health of fish and other aquatic organisms.

Propagation: Myriophyllum verticillatum can propagate through stem fragments or lateral shoots. Simply trim the healthy stems and replant them in the substrate, allowing them to establish new roots. Regular pruning is necessary to control the growth and prevent the plant from becoming too dense.

Compatibility: Myriophyllum verticillatum is compatible with a wide range of fish and invertebrates. It provides cover and shelter for small fish and serves as a spawning substrate for some species. However, ensure that it does not overgrow and shade other plants in the aquarium.

Overall, Myriophyllum verticillatum is a visually striking submerged aquatic plant that adds grace and elegance to aquariums and ponds. With appropriate lighting, water conditions, and care, it can thrive and create a beautiful aquatic environment. Regular maintenance, including pruning and nutrient supplementation, will ensure its continued health and vitality.