Aquarium Plants That Do Not Require CO₂
Injected CO₂ can dramatically change plant growth, but it is not necessary for every planted aquarium. This collection focuses on plants that PlantLab does not mark as requiring injected CO₂, making them stronger candidates for low-tech and naturally balanced tanks.
Plants in this collection.
Midground
anubias-nana
Anubias barteri var. nanaA slow-growing, hardy rhizome plant that works well in low-light and low-tech freshwater aquariums.
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Midground
African Water Fern
Bolbitis heudelotiiA beautiful, slow-growing epiphyte fern with dark, translucent green leaves.
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Floating
Amazon Frogbit
Limnobium laevigatumA popular floating plant with round leaves and very long, trailing roots.
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Background
Amazon Sword
Echinodorus grisebachiiA large, popular rosette plant that forms a bushy centerpiece.
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Background
Amazon Sword (Bleheri)
Echinodorus bleheriA large, broad-leaved sword plant that dominates the background.
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Background
Ammannia gracilis
Ammannia gracilisA large stem with pink-orange twisting top leaves.
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Background
Ammannia pedicellata 'Golden'
Ammannia pedicellataA golden-yellow to orange stem for warm background color.
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Background
Anacharis
Egeria densaA classic, incredibly fast-growing stem plant that is nearly indestructible.
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Midground
Anubias 'Frazeri'
Anubias barteri x congensisA hybrid anubias with elegant elongated leaves.
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Epiphyte
Anubias 'Nangi'
Anubias barteri var. nana x gilletiiA compact hybrid anubias with reddish new leaves.
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Epiphyte
Anubias 'Stardust'
Anubias barteri var. nanaA tiny nana with striking white-veined leaves.
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Midground
Anubias Barteri
Anubias barteri var. barteriA larger Anubias variety with broad, tough leaves.
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Epiphyte
Anubias barteri var. angustifolia
Anubias barteri var. angustifoliaA narrow-leaved anubias with a softer, bushier look.
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Epiphyte
Anubias barteri var. nana 'Coin Leaf'
Anubias barteri var. nanaA round-leaved dwarf nana with a coin-like look.
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Epiphyte
Anubias barteri var. nana 'Golden'
Anubias barteri var. nanaA lime-gold nana whose new leaves glow yellow-green.
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Epiphyte
Anubias barteri var. nana 'Pinto'
Anubias barteri var. nanaA premium white-and-green variegated dwarf anubias.
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Midground
Anubias Coffeefolia
Anubias barteri var. coffeefoliaA stunning Anubias with deeply ribbed, textured leaves.
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Midground
Anubias congensis
Anubias heterophyllaA larger anubias with long leaves for the mid-background.
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Background
Anubias Gracilis
Anubias gracilisAn elegant Anubias with long stems and spade-shaped leaves.
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Midground
Anubias hastifolia
Anubias hastifoliaA large anubias with distinctive arrow-shaped leaves.
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Midground
Anubias minima
Anubias barteri var. minimaA narrow-leaved anubias with a bushy, upright habit.
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Foreground
Anubias Nana Petite
Anubias barteri var. nana 'Petite'A miniature version of Anubias nana, perfect for nano tanks.
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Background
Aponogeton Boivinianus
Aponogeton boivinianusA large bulb plant with stiff, deeply hammered, dark green leaves.
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Aponogeton Crispus
Aponogeton crispusA beautiful bulb plant with long, wavy, translucent leaves.
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Aponogeton Ulvaceus
Aponogeton ulvaceusA spectacular bulb plant with broad, highly twisted, translucent leaves.
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Floating
Asian Watermoss
Salvinia cucullataA floating fern with distinctive cup-shaped leaves.
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Midground
Bacopa 'Colorata'
Bacopa monnieriA pink-purple bacopa that colors under strong light.
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Midground
Bacopa 'Compact'
Bacopa monnieriA dwarf, slow bacopa with tightly stacked round leaves.
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Foreground
Banana Plant
Nymphoides aquaticaA novelty plant with banana-like tubers and heart-shaped leaves.
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Background
Blyxa aubertii
Blyxa aubertiiA large grassy rosette resembling a submerged clump of grass.
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Midground
Blyxa japonica
Blyxa japonicaA grassy rosette that bronzes red under strong light.
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Background
Brazilian Pennywort
Hydrocotyle leucocephalaA fast-growing, versatile vine-like plant.
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Midground
Broadleaf Sagittaria
Sagittaria platyphyllaA robust rosette plant with broad, stiff leaves.
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Background
Broadleaf Water Sprite
Ceratopteris cornutaA fast-growing fern with broader leaves than standard Water Sprite.
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Foreground
Bucephalandra 'Catherine'
Bucephalandra sp.A very small Buce with extremely narrow, dark leaves.
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Epiphyte
Bucephalandra 'Green Wavy'
Bucephalandra sp.An easy wavy-leaved buce with fine white flowers.
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Midground
Bucephalandra 'Kedagang'
Bucephalandra sp.A premium epiphyte with dark, narrow leaves and a reddish stem.
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Foreground
Bucephalandra 'Lamandau Mini Red'
Bucephalandra sp.A small Buce variety with reddish-brown wavy leaves.
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Epiphyte
Bucephalandra 'Red Mini'
Bucephalandra sp.A tiny red-toned buce for detailed nano hardscape.
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Epiphyte
Bucephalandra 'Theia'
Bucephalandra sp.A popular buce with dark leaves and violet sheen.
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Midground
Bucephalandra 'Wavy Green'
Bucephalandra sp.A slow-growing epiphyte with dark, wavy leaves and tiny white spots.
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Background
Canadian Waterweed
Elodea canadensisA cold-water tolerant stem plant very similar to Anacharis.
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Midground
Christmas Moss
Vesicularia montagneiA popular moss that grows in triangular, fir-tree-like fronds.
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Epiphyte
Coral Moss
Riccardia chamedryfoliaA dense, coral-like liverwort for detailed hardscape.
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Background
Corkscrew Vallisneria
Vallisneria asiaticaA twisted-leaf val that makes a tight, grassy background.
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Background
Crinum Calamistratum
Crinum calamistratumA unique bulb plant with dark green, highly crinkled, tentacle-like leaves.
View plant guide →Cryptocoryne balansae
Cryptocoryne crispatula var. balansaeA tall crypt with long, crinkled strap leaves for the background.
View plant guide →Cryptocoryne beckettii 'Petchii'
Cryptocoryne beckettiiA compact olive-bronze crypt for low to medium light.
View plant guide →Cryptocoryne crispatula
Cryptocoryne crispatulaA grass-like background crypt with crinkled narrow leaves.
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Midground
Cryptocoryne lutea
Cryptocoryne luteaA hardy midground plant with bright green to bronze leaves.
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Foreground
Cryptocoryne parva
Cryptocoryne parvaOne of the smallest Cryptocoryne species, ideal for foreground carpeting.
View plant guide →Cryptocoryne pontederiifolia
Cryptocoryne pontederiifoliaA robust, broad-leaved crypt that resists melting.
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Background
Cryptocoryne spiralis
Cryptocoryne spiralisA tall, grass-like Cryptocoryne perfect for the background.
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Midground
Cryptocoryne undulata
Cryptocoryne undulataA beautiful rosette plant with wavy, dark green to brown leaves.
View plant guide →Cryptocoryne usteriana
Cryptocoryne usterianaA large, hammered-leaf crypt for tall background stands.
View plant guide →Cryptocoryne walkeri
Cryptocoryne walkeriA compact, dependable green crypt closely related to lutea.
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Midground
Cryptocoryne wendtii
Cryptocoryne wendtiiA popular rosette plant with ruffled leaves in various colors.
View plant guide →Cryptocoryne wendtii 'Green'
Cryptocoryne wendtiiThe classic easy green crypt for low-light midgrounds.
View plant guide →Cryptocoryne wendtii 'Pink Flamingo'
Cryptocoryne wendtiiA prized pink cultivar crypt that needs light and CO2 to hold color.
View plant guide →Cryptocoryne wendtii 'Red'
Cryptocoryne wendtiiA hardy red-brown rosette crypt that thrives in low to medium light.
View plant guide →Cryptocoryne willisii
Cryptocoryne willisiiA small, grassy crypt for foreground-to-midground carpets.
View plant guide →Cyperus helferi
Cyperus helferiAn aquatic sedge with long, flowing grass-like leaves.
View plant guide →Didiplis diandra
Didiplis diandraA fine needle-leaved stem with orange-red tips.
View plant guide →Duckweed
Lemna minorA tiny, fast-spreading surface floater and nutrient sponge.
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Background
Dwarf Ambulia
Limnophila sessilifloraA fast-growing, undemanding alternative to Cabomba.
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Background
Dwarf Hygrophila
Hygrophila polyspermaA very fast-growing, undemanding stem plant.
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Midground
Dwarf Lily
Nymphaea stellataA beautiful bulb plant that shoots up arrow-shaped red and green leaves.
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Foreground
Dwarf Sagittaria
Sagittaria subulataA hardy, grass-like plant that forms a thick foreground carpet.
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Foreground
Dwarf Water Clover
Marsilea crenataA very small, clover-like carpeting fern.
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Floating
Dwarf Water Lettuce
Pistia stratiotesA floating plant with fuzzy, rosette-shaped leaves and long roots.
View plant guide →Echinodorus 'Kleiner Bar'
Echinodorus x barthiiA smaller red sword with bright red new leaves.
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Background
Echinodorus 'Ozelot'
Echinodorus 'Ozelot'A striking sword plant with distinct red and brown spots on its leaves.
View plant guide →Echinodorus 'Red Diamond'
Echinodorus sp.A narrow-leaved sword with deep burgundy-red foliage.
View plant guide →Echinodorus 'Red Flame'
Echinodorus x barthiiA compact spotted sword with red-and-green marbled leaves.
View plant guide →Echinodorus 'Reni'
Echinodorus sp.A compact sword with pink-red young leaves.
View plant guide →Echinodorus 'Rubin'
Echinodorus x barthiiA tall ruby-toned sword for a centerpiece.
View plant guide →Echinodorus cordifolius
Echinodorus cordifoliusA very large broad-leaved sword that can grow emersed.
View plant guide →Echinodorus martii
Echinodorus martiiA tall sword with heavily ruffled, translucent leaves.
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Background
Eurasian Watermilfoil
Myriophyllum spicatumA hardy, finely leaved stem plant that can tolerate cold water.
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Floating
Fairy Moss
Azolla carolinianaA tiny, fast-growing floating fern that can turn red under high light.
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Midground
Flame Moss
Taxiphyllum sp. 'Flame'A unique moss that grows vertically, resembling green flames.
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Floating
Floating Fern
Salvinia natansA small floating fern with slightly folded, water-repellent leaves.
View plant guide →Giant Duckweed
Spirodela polyrhizaA larger duckweed with reddish undersides and multiple roots.
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Background
Giant Hygrophila
Hygrophila corymbosaA large, broad-leaved stem plant suitable for big aquariums.
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Background
Giant Vallisneria
Vallisneria americanaA massive, ribbon-like plant that grows very tall.
View plant guide →Gratiola viscidula
Gratiola viscidulaA fine-textured stem that creeps and can be trimmed low.
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Background
Green Cabomba
Cabomba carolinianaA classic, feathery stem plant that requires good lighting.
View plant guide →Guppy Grass
Najas guadalupensisA fast, rootless tangle plant that's superb fry and shrimp cover.
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Midground
Hairgrass
Eleocharis acicularisA taller variety of hairgrass, great for midground or background.
View plant guide →Helanthium bolivianum
Helanthium bolivianumA low chain sword that spreads into a grassy carpet-like patch.
View plant guide →Helanthium bolivianum 'Vesuvius'
Helanthium bolivianumA compact chain sword with corkscrew-twisted leaves.
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Floating
Hornwort
Ceratophyllum demersumA rootless, fast-growing floating or stem plant.
View plant guide →Hydrocotyle sibthorpioides
Hydrocotyle sibthorpioidesA tiny-leaved creeping pennywort for foreground mats.
View plant guide →Hydrocotyle Tripartita
Hydrocotyle tripartitaA fast-growing, creeping plant with clover-like leaves.
View plant guide →Hygrophila 'Siamensis 53B'
Hygrophila corymbosaA very easy, fast green stem that tolerates almost anything.
View plant guide →Hygrophila angustifolia
Hygrophila angustifoliaA large willow-leaf hygro for tall backgrounds.
View plant guide →Hygrophila corymbosa 'Angustifolia'
Hygrophila corymbosaA tall, willow-leaved hygro for big backgrounds.
View plant guide →Hygrophila corymbosa 'Compact'
Hygrophila corymbosaA low, dense hygro that grows outward as a midground bush.
View plant guide →Hygrophila Pinnatifida
Hygrophila pinnatifidaA unique fern-like stem plant that can attach to hardscape.
View plant guide →Hygrophila polysperma 'Rosanervig'
Hygrophila polyspermaAn easy pink-veined 'sunset' hygrophila.
View plant guide →Java Fern
Microsorum pteropusA hardy epiphyte fern that thrives attached to rocks or wood.
View plant guide →Java Moss
Taxiphyllum barbieriA versatile moss that provides excellent cover for fry and shrimp.
View plant guide →Jungle Vallisneria
Vallisneria giganteaA giant ribbon val for tall tanks and dramatic backgrounds.
View plant guide →Lace Java Fern
Microsorum pteropus 'Windelov'A variety of Java Fern with finely branched, lace-like leaf tips.
View plant guide →Lemon Bacopa
Bacopa carolinianaA hardy stem plant with thick leaves that smell like lemon when crushed.
View plant guide →Lilaeopsis mauritiana
Lilaeopsis mauritianaA hardy grassy carpet, thicker-bladed than dwarf hairgrass.
View plant guide →Limnophila hippuridoides
Limnophila hippuridoidesA whorled stem with green tops and purple-magenta undersides.
View plant guide →Lindernia rotundifolia
Lindernia rotundifoliaAn easy round-leaved stem with a bright, bushy look.
View plant guide →Lobelia cardinalis 'Small Form'
Lobelia cardinalisA slow, easy stem with round green leaves and purple undersides.
View plant guide →Ludwigia arcuata
Ludwigia arcuataA fine needle-leaved ludwigia that flushes orange-red.
View plant guide →Ludwigia brevipes
Ludwigia brevipesA fine-leaved ludwigia that bronzes under good light.
View plant guide →Ludwigia ovalis
Ludwigia ovalisA creeping ludwigia with rounded pink-flushed leaves.
View plant guide →Ludwigia Palustris
Ludwigia palustrisA stunning, intensely red stem plant that is surprisingly easy to grow.
View plant guide →Ludwigia palustris 'Super Red'
Ludwigia palustrisOne of the easiest true-red stems, red even without CO2.
View plant guide →Ludwigia repens
Ludwigia repensA classic, fast-growing stem plant that turns reddish under good light.
View plant guide →Ludwigia sedioides
Ludwigia sedioidesA floating rosette forming striking diamond-leaf mosaics.
View plant guide →Lysimachia nummularia 'Aurea'
Lysimachia nummulariaA golden round-leaved creeper that brightens the midground.
View plant guide →Madagascar Lace Plant
Aponogeton madagascariensisA highly sought-after bulb plant with striking, skeletal, lace-like leaves.
View plant guide →Marimo Moss Ball
Aegagropila linnaeiA unique spherical algae that is extremely easy to care for.
View plant guide →Marsilea Hirsuta
Marsilea hirsutaA hardy, clover-like fern that makes a great low-tech carpet.
View plant guide →Marsilea quadrifolia
Marsilea quadrifoliaA clover-like carpet fern that tolerates low tech.
View plant guide →Micranthemum umbrosum
Micranthemum umbrosumA bright-green stem of tiny round leaves; a fuller 'baby tears'.
View plant guide →Micro Sword
Lilaeopsis brasiliensisA grass-like carpeting plant with slightly thicker blades than hairgrass.
View plant guide →Moneywort
Bacopa monnieriA hardy, bright green stem plant that grows straight up.
View plant guide →Myriophyllum Mattogrossense
Myriophyllum mattogrossenseA fast-growing stem plant with bright green, feathery leaves.
View plant guide →Narrow Leaf Java Fern
Microsorum pteropus 'Narrow'A Java Fern variety with long, very thin leaves.
View plant guide →Narrow-leaf Vallisneria
Vallisneria nanaA finer, narrower version of classic Vallisneria.
View plant guide →Nymphoides Hydrophylla
Nymphoides hydrophyllaA fast-growing plant similar to the Taiwan Lily, with light green leaves.
View plant guide →Onion Plant
Crinum thaianumA large bulb plant with long, flat, ribbon-like leaves.
View plant guide →Orchid Lily
Barclaya longifoliaA tuberous lily with wavy red-green leaves and a striking form.
View plant guide →Peacock Moss
Taxiphyllum sp. 'Peacock'A moss with feathery fronds and a bluish-green sheen.
View plant guide →Pearl Weed
Hemianthus micranthemoidesA versatile, fast-growing stem plant with tiny leaves.
View plant guide →Pearlweed (Micranthemum)
Micranthemum sp.A tiny-leaved carpeting Micranthemum for bright foregrounds.
View plant guide →Pellia
Monosolenium tenerumA thick, brittle thalloid liverwort with a lush look.
View plant guide →Phoenix Moss
Fissidens fontanusA premium moss with delicate, feather-like fronds.
View plant guide →Pogostemon Erectus
Pogostemon erectusA beautiful stem plant with fine, bright green, pine-like needles.
View plant guide →Proserpinaca palustris
Proserpinaca palustrisA stem whose leaves turn saw-toothed and orange underwater.
View plant guide →Pygmy Chain Sword
Helanthium tenellumA grass-like plant that forms a dense foreground carpet.
View plant guide →Ranunculus inundatus
Ranunculus inundatusA creeping plant with unique umbrella-shaped lobed leaves.
View plant guide →Red Root Floater
Phyllanthus fluitansA highly sought-after floating plant with bright red roots and leaves.
View plant guide →Red Tiger Lotus
Nymphaea lotusA stunning bulb plant with broad, red, mottled leaves.
View plant guide →Rotala 'Mini Butterfly'
Rotala sp.A dwarf rotala with tiny leaves and pink-cream tops.
View plant guide →Rotala 'Nanjenshan'
Rotala sp. "Nanjenshan"A needle-leaved green rotala with a soft, feathery look.
View plant guide →Rotala Hra
Rotala sp. 'Hra'A variant of Rotala rotundifolia that turns intensely orange-red.
View plant guide →Rotala Indica
Rotala indicaA classic stem plant with small, round leaves that grow densely.
View plant guide →Rotala macrandra 'Green'
Rotala macrandraA delicate large-leaved green macrandra for high-tech scapes.
View plant guide →Rotala mexicana 'Bangladesh'
Rotala mexicanaA fine-leaved rotala turning fiery orange-red on top.
View plant guide →Rotala rotundifolia
Rotala rotundifoliaA fast-growing stem plant that forms dense, colorful bushes.
View plant guide →Rotala rotundifolia 'Blood Red'
Rotala rotundifoliaA compact, intensely red rotala for high-tech tanks.
View plant guide →Rotala rotundifolia 'Bonsai'
Rotala rotundifoliaA dwarf, tightly-noded rotala for compact midground bushes.
View plant guide →Rotala rotundifolia 'Colorata'
Rotala rotundifoliaA warmer-toned rotundifolia with orange-pink tops.
View plant guide →Rotala rotundifolia 'Green'
Rotala rotundifoliaAn easy, fast green stem that bushes out readily.
View plant guide →Spiky Moss
Taxiphyllum sp. 'Spiky'A robust moss similar to Christmas Moss but with larger, spikier fronds.
View plant guide →Stargrass
Heteranthera zosterifoliaA fast-growing stem plant that forms dense, star-like clusters.
View plant guide →Staurogyne Repens
Staurogyne repensA compact, bushy foreground plant with sturdy green leaves.
View plant guide →Taiwan Lily
Nymphoides sp. 'Taiwan'A unique rosette plant with bright green, flipper-shaped leaves.
View plant guide →Taiwan Moss
Taxiphyllum alternansA tidy, drooping moss that forms neat triangular fronds.
View plant guide →Tricolor Lotus
Nymphaea micranthaA beautiful bulb plant with leaves featuring green, red, and brown mottling.
View plant guide →Trident Java Fern
Microsorum pteropus 'Trident'A smaller Java Fern with narrow, multi-lobed leaves.
View plant guide →Vallisneria spiralis
Vallisneria spiralisA tall, grass-like background plant that spreads via runners.
View plant guide →Water Hyacinth
Eichhornia crassipesA large floating plant with bulbous stalks and showy flowers.
View plant guide →Water Spangles
Salvinia minimaA very popular floating fern with tiny, stiff hairs on its leaves.
View plant guide →Water Sprite
Ceratopteris thalictroidesA fast-growing fern that can be planted or floated.
View plant guide →Water Wisteria
Hygrophila difformisA fast-growing stem plant with deeply lobed, lace-like leaves.
View plant guide →Weeping Moss
Vesicularia ferrieiA beautiful moss known for its distinct downward, weeping growth habit.
View plant guide →Whorled Pennywort
Hydrocotyle verticillataA unique plant with round, umbrella-like leaves on vertical stems.
View plant guide →Willow Moss
Fontinalis antipyreticaA cool-water moss with a willow-like, drooping look.
View plant guide →
Wild AI