If you are looking for the perfect plant to create a bright green carpet at the bottom of your aquarium, take a look at Micranthemum montecarlo. This little plant, native to the sunny foothills of Argentina, has won the hearts of aquarists around the world. And for good reason — its delicate yet resilient beauty can transform any underwater landscape.
Outwardly, Monte Carlo is a scattering of small, succulent, rounded leaves. They are bright green, almost emerald, and in good lighting, they seem to sparkle with pearlescent glints. It grows by spreading along the ground and quickly forms a dense, velvety cover, which small aquarium inhabitants love to frolic in.
What is particularly nice is that this plant is quite undemanding. For successful growth, it needs sufficient light and carbon dioxide supply, but it forgives some mistakes made by beginners. In just a few weeks, it can create a stunning living lawn that will become the main decoration of your underwater garden.
Distribution
This species of micranthemum was discovered in Argentina near Monte Carlo, from which it gets its name. It was discovered by Japanese researchers in 2010, after which, starting around 2012, the plant began to be actively cultivated in aquariums.
It is currently one of the most popular ground covers used in aquascaping.
In its natural environment, Micranthemum montecarlo grows in tropical and subtropical forests, mainly in the coastal zone of water bodies.
However, it is also found in rivers with strong currents and low water levels.
Cultivation and care
Micranthemum Monte Carlo is not very demanding in terms of maintenance. This allows even a beginner to decorate the aquarium with a beautiful lush carpet. This plant has no restrictions on the volume of the aquarium for planting or special requirements for water conditions. It coexists well with tropical ferns, various types of cryptocorynes, and anubias.
Aquarists use pearl grass to decorate any area of the aquarium:
- in the foreground, micranthemum looks attractive as a green carpet;
- the middle ground will be decorated with bundles of tangled stems, which are used to decorate driftwood or stones to create compositions in the style of the hanging gardens of Semiramis.
- lush bushes of Micranthemum are often planted in the background, which are formed by pinching the tops of growing shoots.
Micranthemum Monte Carlo tolerates frequent trimming, which is necessary to maintain the attractive appearance of the aquarium. In good conditions, it grows rapidly and can cover an area of about 30 cm within a month.
Water parameters for ideal maintenance
The undemanding Micranthemum montecarlo feels comfortable in both very soft and very hard water. It can survive even at low temperatures. There are no requirements for the water level in the aquarium.
Acceptable water parameters:
- acid-alkaline balance — 5.0-8.
Although Micranthemum can grow in various conditions, it is best to maintain the following water parameters:
- acid-alkaline balance — 6.5-7.5
According to the experience of many aquarists, if the pH level is less than 6, Micranthemum montecarlo stops growing normally, and its upper leaves become paler.
Since micranthemum grows in turbulent rivers in its natural habitat, it is advisable to create at least a small water current in the aquarium.
Micranthemum Monte Carlo prefers clean water. It is necessary to install a powerful filter and replace 1/3 of the liquid volume in the aquarium weekly.
Lighting requirements
A large amount of light is one of the few essential conditions for the proper cultivation of Micranthemum montecarlo. It is advisable to maintain a light intensity of 1 W/l. The minimum power is 0.5 W/l.
With a lack of ultraviolet light, the plant will begin to stretch out, and with too much light, there is a risk of provoking intense growth of blue algae. The latter are particularly harmful to Micranthemum.
Another sign of a lack of light in Micranthemum Monte Carlo is a change in the lush green color of the leaves to brown.
Since the plant comes from the tropics and subtropics, the daylight hours should last at least 10 hours. However, aquarists also do not recommend exceeding the 12-hour threshold.
Soil and substrate requirements
Micranthemum Monte Carlo requires nutritious soil with a high iron content. It is advisable to use a substrate with fine granules, comparable to coarse river sand or fine gravel.
It is not recommended to plant Micranthemum montecarlo in clean soil. It does not take root as well in fresh substrate. It is best to place it in an “old” aquarium with silted soil.
When growing this ground cover, you can use one of the following substrates:
- Aquayer. This nutrient substrate maintains an acid-alkaline balance of 6.5-6.8, which hinders the spread of algae. It contains essential micro- and macroelements—iron, potassium, calcium, phosphorus, nitrogen, etc. It is recommended to cover it with a layer of pebbles or coarse sand about 2 cm thick.
- Dennerle DeponitMix Professional 9in1. A rich, nutritious substrate with a high iron chelate content. It contains clay, which has a lot of nutrients that micranthemum needs. The downside is that it's only used as a nutrient substrate. You'll need to put decorative substrate on top. Promotes root system development and the formation of lush green foliage in aquatic plants.
- Tetra Active Substrate. According to the manufacturers, the granules of this nutrient-rich soil are able to absorb excess nutrients from the water in the aquarium and later “release” them back. This is especially useful for beginners who are afraid of miscalculating the amount of fertilizer. According to aquarists, this substrate creates excellent conditions for the development of a strong root system for aquatic plants.
Fertilizer requirements
When growing Micranthemum Monte Carlo, it is recommended to use liquid fertilizers regularly to maintain its healthy appearance. Otherwise, if there is a lack of fertilizer, the leaves of the plant will turn yellow or red. The following fertilizers can be used to feed the soil cover:
- JBL Ferropol 24 is a liquid fertilizer for daily use, rich in trace elements, which helps reduce algae growth.
- JBL Ferropol is a liquid fertilizer with trace elements that can be used when changing the water or starting an aquarium from scratch.
- API Leaf Zone is a liquid fertilizer with a high content of potassium and chelated iron.
When applying fertilizers for micranthemum, it is necessary to calculate the dosage precisely. The plant does not tolerate overfeeding. Excessive fertilization disrupts growth processes and also leads to darkening of the color of the stems and leaves of the soil cover.
In order for Micranthemum to form a beautiful dense carpet, in addition to mineral fertilizers, it is necessary to regularly add carbon dioxide to the water at a concentration of 6-35 mg/l.
Micranthemum Monte Carlo is a miniature plant with bright green leaves that grows in aquariums as a dense carpet, like living moss. It originates from Argentina, where it grows near rivers and streams under the sun, and creates a cozy, natural background in home aquariums. It is unpretentious, grows quickly, does not require powerful lighting or CO2, and is ideal for both beginners and experienced aquarists who dream of a living “lawn” in the water.
Reproduction
Micranthemum monte carlo reproduces vegetatively. Its shoots spread across the surface of the soil, gradually taking root in it.
Alternatively, a whole stem or part of it is separated from the parent bush and then planted in the substrate.
The root system forms fairly quickly. As owners of Micranthemum note, you can even just place it on the substrate, and the sprout will take root.
After purchasing the plant in a store, it is planted in the aquarium as follows:
- cut off long rhizomes.
- divide large seedlings into several small bushes.
- the micranthemum bunches are planted in a fine-grained substrate at a distance from each other.
- the sprouts are lightly covered with soil, leaving part of the stem above the substrate.
Micranthemum Monte Carlo can also exist in a floating form. It is enough to leave the cut tops of the stems to drift on the surface. Over time, they will develop roots, and if desired, they can be fixed in the ground. Alternatively, attach them to a log or stone using fishing line or thread.
Variations and forms of the plant
There are no natural or artificially bred forms of this plant. Other types of micranthemum can be found in aquariums:
- Micrantemum Umbrosum. Its bushes grow no more than 20 cm in height and reach 15 cm in width. As with Monte Carlo, it can be planted in soil, on driftwood or stones, or left floating in water. It looks good together with ferns and Java moss. It grows in swampy water bodies in North and South America.
- Micranthemum micranthemoides — Micranthemum micranthemoides. Found in North America. Prefers deep water bodies. Bushes grow no more than 30 cm in height and have more pointed leaves compared to Micranthemum monte carlo.
Micranthemum Monte Carlo is a real find for aquarists who dream of a thick green carpet without unnecessary hassle. Its ability to spread across the bottom and quickly create a dense cover is impressive at first glance.
This plant is indeed easier to care for than many of its counterparts. It does not require CO₂ to start growing and can tolerate moderate lighting, although it shows its full beauty in good light. This makes it an excellent choice for both beginners and experienced aquascape designers.
As a result, this Argentine guest offers an amazing opportunity. You can create in your aquarium the very lush, velvety landscape that is so prized in natural aquascapes. Monte Carlo is living proof that the beauty of the underwater world can be accessible and very rewarding to care for.
