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Aquarium plants

20 species with care difficulty, light requirements, CO2 needs, and placement guidance. All plants are freshwater. Low-light and no-CO2 options are clearly labelled.

Images are Wikimedia Commons–verified species photos where available; otherwise neutral placeholders—not stock art.

Plant guides

Easy, low-light plants — no CO2 needed

  • Java Moss — photograph (Wikimedia Commons; see site attributions)
    Java Moss

    Taxiphyllum barbieri

    easylow lightNo CO2

    Java Moss is one of the most forgiving aquarium plants available. It attaches to rocks, driftwood, and mesh, forming dense green mats that provide shelter for fry and invertebrates. Tolerates a wide range of temperatures and light levels.

  • Anubias — photograph (Wikimedia Commons; see site attributions)
    Anubias

    Anubias barteri var. barteri

    easylow lightNo CO2

    Anubias is a slow-growing rhizome plant from West Africa. Its thick, dark-green leaves are extremely resilient and are largely ignored by most fish, except dedicated herbivores. It thrives tied to hardscape rather than planted in substrate.

  • Java Fern — photograph (Wikimedia Commons; see site attributions)
    Java Fern

    Microsorum pteropus

    easylow lightNo CO2

    Java Fern is an undemanding, slow-growing fern that thrives when attached to hardscape. Its tough leaves are rarely eaten by fish, making it one of the few plants safe with cichlids and goldfish. New plantlets grow on the leaf margins.

  • Hornwort — photograph (Wikimedia Commons; see site attributions)
    Hornwort

    Ceratophyllum demersum

    easylow lightNo CO2

    Hornwort is a fast-growing, rootless stem plant that can be floated or anchored in substrate. Highly effective at absorbing nitrates, making it a practical choice for new tanks or overstocked setups. Needle-like leaves shed readily, vacuum them up regularly.

  • Cryptocoryne Wendtii — photograph (Wikimedia Commons; see site attributions)
    Cryptocoryne Wendtii

    Cryptocoryne wendtii

    easylow lightNo CO2

    Cryptocoryne wendtii is a resilient, slow-growing rosette plant widely available in many leaf-colour variants (green, brown, red). Once established, it spreads naturally via runners. It may melt back after a change in conditions, new growth will be adapted to your tank.

  • Duckweed — photograph (Wikimedia Commons; see site attributions)
    Duckweed

    Lemna minor

    easylow lightNo CO2

    Duckweed is the smallest flowering plant and one of the easiest floating plants to maintain. It is very fast-growing, highly effective at nutrient export, and shades the tank well. A double-edged plant: extremely useful for nutrient control, but notoriously hard to remove once introduced.

  • Hygrophila Polysperma — photograph (Wikimedia Commons; see site attributions)
    Hygrophila Polysperma

    Hygrophila polysperma

    easylow lightNo CO2

    Hygrophila polysperma is one of the most beginner-tolerant stem plants. It grows in almost any conditions, tolerates low light, and does not need CO2 or fertiliser. Its fast growth helps reduce algae by competing for nutrients.

  • Anubias Nana — photograph (Wikimedia Commons; see site attributions)
    Anubias Nana

    Anubias barteri var. nana

    easylow lightNo CO2

    Anubias nana is the miniature version of Anubias barteri, forming compact clusters of small dark-green leaves. It is ideal for foreground or hardscape attachment. Extremely slow-growing and tolerant of low light, a favourite in low-tech and shrimp tanks.

  • Marimo Moss Ball — photograph (Wikimedia Commons; see site attributions)
    Marimo Moss Ball

    Aegagropila linnaei

    easylow lightNo CO2

    Marimo Moss Balls are not true moss, they are spherical colonies of filamentous algae that grow naturally in sub-alpine lakes. In aquariums they provide surface area for beneficial bacteria and microorganisms, and are a popular, low-maintenance décor element.

Easy plants — medium or higher light

  • Amazon Sword — photograph (Wikimedia Commons; see site attributions)
    Amazon Sword

    Echinodorus grisebachii

    easymedium lightNo CO2

    Amazon Sword is a large rosette plant native to South America. It produces broad, lance-shaped leaves and can dominate a tank when mature, making it best suited as a solo background centerpiece in medium to large aquariums. Roots heavily and benefits from root tabs.

  • Water Wisteria — photograph (Wikimedia Commons; see site attributions)
    Water Wisteria

    Hygrophila difformis

    easymedium lightNo CO2

    Water Wisteria is a fast-growing stem plant with delicate, lace-like leaves in moderate to high light. Easy to propagate and effective at competing with algae for nutrients. A popular choice for beginners wanting a bushy background plant without CO2.

  • Water Sprite — photograph (Wikimedia Commons; see site attributions)
    Water Sprite

    Ceratopteris thalictroides

    easymedium lightNo CO2

    Water Sprite is a versatile, fast-growing fern that can be planted in substrate or floated on the surface. When floating, it shades the tank and provides excellent cover for surface-dwelling fish and fry. Effective at nutrient uptake and algae competition.

  • Vallisneria — photograph (Wikimedia Commons; see site attributions)
    Vallisneria

    Vallisneria spiralis

    easymedium lightNo CO2

    Vallisneria is a classic tall background plant with ribbon-like leaves that sweep across the water surface. It tolerates hard, alkaline water well, making it one of the few plants suited to African cichlid tanks. Spreads quickly via runners.

  • Amazon Frogbit — photograph (Wikimedia Commons; see site attributions)
    Amazon Frogbit

    Limnobium laevigatum

    easymedium lightNo CO2

    Amazon Frogbit is a floating plant with rosettes of rounded leaves and long trailing roots that provide excellent cover for surface fish, fry, and invertebrates. It grows fast and can cover a tank surface quickly. Very effective at nutrient uptake.

  • Rotala Rotundifolia — photograph (Wikimedia Commons; see site attributions)
    Rotala Rotundifolia

    Rotala rotundifolia

    easymedium lightNo CO2

    Rotala rotundifolia is a popular, fast-growing stem plant whose leaves shift from green to pink-orange under high light with CO2. In lower light it stays green and grows more slowly. Works well in background groups, creating a soft, feathery effect.

  • Ludwigia Repens — photograph (Wikimedia Commons; see site attributions)
    Ludwigia Repens

    Ludwigia repens

    easymedium lightNo CO2

    Ludwigia repens is a colourful stem plant with green tops and deep red undersides. It is one of the easiest red plants available and does not require CO2 injection, though CO2 improves colour intensity significantly.

  • Brazilian Pennywort — photograph (Wikimedia Commons; see site attributions)
    Brazilian Pennywort

    Hydrocotyle leucocephala

    easymedium lightNo CO2

    Brazilian Pennywort is a versatile, fast-growing stem plant with round, lily-pad-like leaves. It can be planted in substrate or left floating at the surface. Provides good cover for surface-oriented fish and shrimp.

Intermediate plants

  • Dwarf Hairgrass — photograph (Wikimedia Commons; see site attributions)
    Dwarf Hairgrass

    Eleocharis parvula

    mediummedium lightNo CO2

    Dwarf Hairgrass forms a dense grass-like carpet in the foreground given adequate light and nutrients. It spreads via runners. CO2 injection significantly speeds establishment; without it, growth is slow and sparse, and algae may outcompete it before it covers the substrate.

  • Monte Carlo — no verified species photo yet (placeholder)
    Monte Carlo

    Micranthemum tweediei

    mediummedium lightNo CO2

    Monte Carlo is a popular carpet plant producing small, round bright-green leaves. It grows well in medium light without CO2 but spreads much faster with it. Grows more easily than HC Cuba for beginners looking for a carpet effect.

  • Staurogyne Repens — photograph (Wikimedia Commons; see site attributions)
    Staurogyne Repens

    Staurogyne repens

    mediummedium lightNo CO2

    Staurogyne repens is a small, compact foreground plant with round, serrated leaves. It forms a bushy low cluster and is one of the more accessible foreground stem plants that does not require CO2 injection. Growth is slow, but it is a versatile hardscape accent plant.