foreground plant · easy to medium

Monte Carlo: height, light, CO₂ & fish that eat it

Micranthemum tweediei 'Monte Carlo' typically grows 0.4–2 in tall (1–5 cm) and grows in the foreground of a tank. It's rated for medium–high light, and injected CO₂ is helps, but sources disagree on whether it's needed., pH 5–7.

Try it in the tank builder See which fish eat it

How tall it grows

Each bar is roughly the water depth a tank leaves above the substrate. The teal band is the plant's reported height range. ✓ fits, trim means it can reach the surface, ✕ means it typically outgrows the water.

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Quick facts

Grows to: 0.4–2 in (1–5 cm)
Height basis: Tropica 2-month avg 3-5+; Aquasabi/Flowgrow 1-3
Where it goes: foreground
Light: medium–high light
Injected CO₂: helps
Growth: medium
Difficulty: easy to medium
Temperature: not published
pH: 5–7
Hardness: not published
Feeds through: not published
Also sold as: Micranthemum 'Monte Carlo'; Micranthemum sp. 'Montecarlo-3'

Planting tip: Split into small portions and plant them a little apart; trim in time so the mat does not lift off.

Fish and Monte Carlo

Checked with the same rules as our tank builder: plant-eating and digging named in each fish's sources, plus temperature and pH overlap.

Eats it (9)

May uproot it (6)

Different water (3)

Fish that leave it alone and share its water (92)

Pearl Gourami Angelfish German Blue Ram Bolivian Ram Kribensis Bronze Cory Panda Cory Pygmy Cory Julii Cory Bristlenose Pleco Otocinclus Kuhli Loach Hillstream Loach Siamese Algae Eater Cherry Shrimp Amano Shrimp Mystery Snail Glowlight Tetra Lemon Tetra Congo Tetra Black Neon Tetra Chili Rasbora Boesemani Rainbowfish Dwarf Neon Rainbowfish African Dwarf Frog Pea Puffer Ghost Shrimp Iridescent Shark Bala Shark Red-Tail Shark Rainbow Shark Chinese Algae Eater Neon Tetra Cardinal Tetra Black Skirt Tetra Serpae Tetra Rummy-nose Tetra Ember Tetra Harlequin Rasbora Zebra Danio Celestial Pearl Danio White Cloud Mountain Minnow Cherry Barb Tiger Barb Guppy Endler's Livebearer Molly Platy Swordtail Betta Dwarf Gourami Honey Gourami Head-and-tail-light Tetra Bleeding Heart Tetra Diamond Tetra Silver Tip Tetra Pristella Tetra Penguin Tetra Silver Hatchetfish Marbled Hatchetfish Lambchop Rasbora Pearl Danio Giant Danio Scissortail Rasbora Gold Barb Rosy Barb Odessa Barb Denison Barb Variatus Platy Three-spot Gourami Moonlight Gourami Sparkling Gourami Paradise Fish Cockatoo Dwarf Cichlid Firemouth Cichlid Discus Blood Parrot Cichlid Peppered Cory Sterbai Cory Clown Pleco Pictus Catfish Glass Catfish Upside-down Catfish Weather Loach Forktail Blue-eye Clown Killifish Bumblebee Goby Crystal Red Shrimp Bamboo Shrimp Ramshorn Snail Malaysian Trumpet Snail Japanese Trapdoor Snail

Common questions

How tall does Monte Carlo grow?

Growers report about 0.4–2 in (1–5 cm). Basis: Tropica 2-month avg 3-5+; Aquasabi/Flowgrow 1-3.

How much light does Monte Carlo need?

It's rated for medium–high light. Growers often disagree on light, so this is the full range across our sources.

Does Monte Carlo need CO₂?

It isn't strictly required, but sources disagree and some recommend injected CO₂ for best growth.

Which fish eat Monte Carlo?

In our database, Convict Cichlid, Common Pleco, Common / Comet Goldfish, Clown Loach, Tinfoil Barb, Buenos Aires Tetra, Kissing Gourami, Yoyo Loach, Fancy Goldfish are flagged as eating live plants. Tough-leaved anubias usually hold up better.

Gear for Monte Carlo

PlantLive Monte Carlo. Compare sellers and pot sizes.Find on Amazon →LightA planted-tank LED. Monte Carlo needs at least medium light.Find on Amazon →

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Sources

Values come from these pages, in our own words. Where growers disagree, we show the full range. Last reviewed 2026-10-17.

tropica.com /en/plants/plantdetails/Micranthemum-'Monte-Carlo'-(025-TC)/4442
aquasabi.com /Micranthemum-tweediei-Montecarlo-3
flowgrow.de /db/aquaticplants/micranthemum-tweediei