Rotala 'Red Cross' is a striking aquatic plant popular among aquascapers and aquarium hobbyists for its intense red coloration and unique growth patterns. It is a hybrid plant, created through the selective breeding of different Rotala species, which has resulted in a plant with highly desirable aesthetics for planted aquariums. Here's a detailed look into its characteristics and care requirements
Characteristics:
- Appearance: Rotala 'Red Cross' features thin, delicate stems with small, rounded leaves. Under optimal conditions, the leaves exhibit vibrant shades of red and pink, which can add a dramatic splash of color to any aquarium.
- Growth Habit: This plant tends to grow vertically and can become quite tall, making it suitable for background placement in aquariums. With proper trimming and care, it can also be encouraged to grow more bushy and lateral, which is often desired in aquascaping.
Care Requirements:
- Lighting: High lighting conditions are crucial for Rotala 'Red Cross' to develop its vivid coloration. Lower light levels may result in the plant exhibiting more greenish hues.
- CO2 and Fertilization: To achieve the best growth and color, supplementation with CO2 and a comprehensive fertilization regime (including macro and micronutrients) is recommended. CO2 supplementation is particularly important for promoting lush growth and enhancing the red colors.
- Water Conditions: Like many aquatic plants, Rotala 'Red Cross' prefers clean water with stable conditions. Regular water changes, along with maintaining proper temperature (between 22°C and 28°C or 72°F and 82°F), pH (around 5.5 to 7.5), and hardness, will support its health and growth.
- Pruning: Regular pruning is necessary to ensure the plant maintains its shape and to encourage bushier growth. It can also prevent the lower portions from being shaded out by the top leaves, which might lead to leaf drop.
Propagation:
Propagation is relatively simple and can be done by cutting the stem and replanting the cuttings into the substrate. This not only helps in creating a denser look but also in managing the height of the plants in your aquascape.
Aquascaping Uses:
Rotala 'Red Cross' is a versatile plant that can be used in various aquascaping styles, including nature aquariums, Dutch-style, and Iwagumi layouts. Its intense color provides an excellent contrast against green plants and can be used effectively to draw the eye or create focal points within the tank.
Challenges:
While not the most difficult plant to keep, achieving the intense red coloration can be challenging without the right conditions. It requires a bit of experience with planted tanks to meet its needs for lighting, CO2, and nutrients.
Rotala 'Red Cross' is a beautiful addition to any planted aquarium for hobbyists looking to add color and texture to their aquascapes. With proper care and attention to its needs, it can truly transform the look of an aquarium.