If you are looking for an aquarium plant that immediately catches the eye with its neat, almost architectural form, take a look at Hygrophila araguaia. It is not just green vegetation, but a real decoration of the underwater landscape, capable of becoming a bright accent in any aquarium.
What is so special about it? Its leaves grow from a single point, forming regular, symmetrical rosettes that resemble elegant stars. In good lighting, they take on a beautiful olive or copper hue with a lighter, almost salad-green center. This creates an effect of inner glow and a stunning play of colors.
Despite its spectacular appearance, Hygrophila araguaia is not a capricious plant. It is quite unpretentious and adapts well to different conditions. At the same time, it does not grow too quickly, which allows you to maintain your composition for a long time without frequent trimming. It is the perfect choice for those who want to add clear shape and volume to their aquarium.
Hygrophila araguaia is an incredibly lush aquarium plant that looks as if it were drawn with a ruler: its branches grow strictly vertically, and the leaves sit tightly and symmetrically, creating the effect of a living green column. It grows quickly, bushes well, and is suitable even for beginners—if given enough light, it becomes a real accent in the aquarium. The main thing is not to forget to prune it, otherwise it will thicken and shade its neighbors. This plant gives a feeling of order and richness of greenery at the same time.
Distribution
The plant was named after the Araguaia River in South America. However, this is a factual error. This Hygrophila grows in Southeast Asia in the waters of Hong Kong and Japan, which has been recorded in scientific literature. Despite this, the incorrect name has stuck and is actively used by aquarists.
Growing and care
Due to its size, Hygrophila araguayensis is rarely used for cultivation in small aquariums. It is more suitable for large vessels and paludariums.
If the bush is regularly trimmed from above, it becomes more lush and looks much more impressive. When decorating an aquarium, it is planted in the ground because it cannot grow on rocks or driftwood.
Hygrophila lancea has difficulty adapting to new conditions. However, if the water conditions, amount of light, and nutrients are comfortable for the plant, over time the owner may observe light purple flowers in the leaf axils.
Water parameters for ideal maintenance
Since the plant grows mainly in Asia, it will feel best in tropical aquariums. The water conditions in them should meet the following requirements:
- temperature: 18-30ºC, with an optimal range of 23-26ºC.
- acidity — 4-7, recommended 6.5-7;
- hardness — 0-15º, a comfortable level for the plant is 4-7º.
1/5 of the total volume of water in the aquarium must be changed weekly.
Lighting requirements
The color of the plant changes depending on the amount of light. The more powerful the light flux, the more contrasting the color of the leaves will be. If Hygrophila is grown in a paludarium, it will be brownish-green. Hygrophila sp. “Araguaia” requires bright lighting. You should choose lamps with a brightness of at least 70 lm/l, and preferably 100 lm/l.
Hygrophila araguaia should be planted so that it is not shaded. Otherwise, its leaves will begin to die off. You need to provide enough free space around the bush so that it grows lush and beautiful. The growth rate of Hygrophila also directly depends on the amount of light.
Requirements for soil, nutrient substrate
When growing Hygrophila araguaia, it is necessary to use a nutrient soil with granules the size of fine gravel. This helps maintain the acidity of the water and reduces its hardness. Another advantage is that beneficial bacteria reproduce well in such soil. A moderate amount of silt is also beneficial.
When choosing a nutrient substrate or soil, pay attention to laterite-based compositions. They contain a large amount of iron. This is especially important for maintaining the bright red color of the leaves. It is also desirable to have peat in the composition.
Special brands of soil are suitable for aquariums with Hygrophila sp. “Araguaia”:
- Seachem Fluorite. It uses fine porous gravel. It is recommended to rinse it before placing it in the aquarium, as it may contain a lot of dust.
- JBL Manado. Nutritious laterite soil of reddish-brown color. It promotes the growth of aquarium plants and prevents the development of algae.
Fertilizer requirements
Hygrophila araguaia has a fairly strong root system, as it is through this that the plant obtains most of its nutrients. If you need to accelerate the growth of the bush and supply it with microelements, you can use TetraPlant Start tablets.
- If you only need to supplement iron, manganese, potassium, and other micronutrients, TetraPlanta Crypto tablets are suitable.
- For good development, Hygrophila requires a supply of CO2. The minimum amount of carbon dioxide is 10-15 mg/l.
Reproduction
Hygrophila araguaia reproduces vegetatively. The stem of the plant is divided into parts with 3-4 leaf nodes. The cuttings are left to float on the surface until the root system appears, and after the roots appear, they are planted in the soil.
The stem of Hygrophila is divided into parts. Each part should have at least 5-6 pairs of leaves. It is advisable to immerse the lower pair in the soil when planting for better fixation.
Variations and forms of the plant
Relatively recently, one of the forms of this plant, obtained as a result of mutation, was recorded in Singapore. It was named Hygrophila sp. Chai and is not yet widely distributed. This plant requires CO2 supply and a powerful light source. It is distinguished by its pink color with rare white stripes.
Other Hygrophila species are also popular among aquarists:
- Ivolistnaya. Grows in shallow water and marshy areas of Southeast Asia. Reaches a height of up to 30 cm. Some specimens have serrated leaf edges. It is distinguished by its bright green color, which changes to light shades towards the bottom. Does not require strong lighting — up to 50 Lm/l.
- Multiseeded. Well suited for beginners. The leaves of this plant are oval in shape. Initially, the color of the bush is light green, but in bright light it changes to red.
- Pinnatifida. It is best to grow this plant in herb gardens, as this representative of Hygrophila grows slowly. It has a weak root system. The color of the bush can vary from green to red-burgundy.
- Lemon corimbosa. Another name for this popular decorative plant is shield-shaped. In aquarium design, it is used to decorate the background. The leaves are light green with a beautiful silvery tint on the underside. The shape of the leaf is close to oval.
- Marble Rosanerwig. It was obtained as a result of selection and is one of the forms of multi-seeded hygrophila. This variation is distinguished by its bright pink color and more contrasting veins.
- Balsam. It resembles a Christmas tree in appearance. It requires a constant supply of carbon dioxide and bright lighting, and actively reproduces in good conditions. The leaves are bright green.
- Cinema. It is well suited for a paludarium, as it grows in swampy areas in its natural environment. When the plant is in water, its leaves change shape as they grow, eventually dividing into segments. When above water, the leaves remain whole, with smooth edges.
Hygrophila araguaia is a plant that combines beauty and strict order. Its neat rosettes and symmetrical leaves create a sense of harmony and completeness in the aquarium. It resembles natural architecture, giving the composition structure.
Caring for it is not particularly difficult, even for beginners. With good lighting and sufficient nutrients, it will reward you with rapid growth and bright colors. It is an ideal candidate for creating picturesque groups in the middle ground.
Overall, this is an excellent choice for any aquarist who appreciates not only the lushness of plants, but also their precise shape. Hygrophila araguaia will help you create a truly stylish and graphic landscape in your underwater garden.
