Micranthemum Tweediei ‘Monte Carlo’ Aquatic Plant
Monte Carlo (scientific name: Micranthemum tweediei) is a popular choice for freshwater aquariums. It features compressed, bright green leaves on creeping stalks and sprouts rapidly, creating a lush foreground cover for your aquarium.
Micranthemum ‘Monte Carlo’ is native to Argentina. This hardy, fast-growing plant can flourish in a variety of tank conditions. Generally, it performs best in shade, but requires good light conditions as well as CO2 to grow its finest and become really compact.
Besides creating an appealing aquascape in the foreground, Micranthemum ‘Monte Carlo’ offers refuge for shrimp and fish fry. It doesn’t require much care and easily adapts to low-tech setups.
| Key Features |
|---|
| Scientific Name: Micranthemum tweediei |
| Common Name: Monte Carlo |
| Origin: Argentina |
| Growth Rate: Fast |
| Light Requirement: Moderate to low (best in shade) |
| CO2 Requirement: Recommended for optimal growth |
| Water Type: Freshwater |
| Best Use: Foreground cover, shrimp and fry habitat |
FAQ
What are the light requirements for Micranthemum ‘Monte Carlo’?
It performs best in shade but requires good light conditions to grow properly. Moderate to low light is ideal, with optimal growth achieved under sufficient light and CO2 support.
Does this plant require CO2 for growth?
CO2 is recommended for optimal growth and compact foliage. It can grow in low-tech setups without CO2, though growth may be slower and less dense.
Is this plant suitable for beginner aquarists?
Yes, it is easy to care for and adapts well to low-tech aquariums. It requires minimal maintenance and is ideal for beginners looking to establish a lush foreground.


Frank Peake –
I added Monte Carlo to my 20-gallon tank and it spread quickly. The leaves are bright green and dense, creating a nice foreground. My shrimp use it for hiding, and it’s very easy to maintain. I didn’t need CO2 at first, but added it later for better growth.
Gavin Coleman –
Grew well in low light with no CO2. The plant fills the bottom nicely and looks natural. A bit of pruning is needed every few weeks to keep it from becoming too dense, but overall it’s a great addition.
Simon Dyer –
Perfect for a beginner. It sprouted within a week and covered the front of the tank beautifully. My baby guppies hide in the leaves, and it’s very hardy. No special equipment needed beyond regular water changes.