Ceratophyllum demersum - hornwort / hornwort

Article no: DE-764
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Product information "Ceratophyllum demersum - hornwort / hornwort"

Ceratophyllum demersum

max. growth height - 120 cm Country of origin Cosmopolitan
Suitability Discus aquarium, community aquarium, NanoCubes, perch aquarium Type Floating plant
family Ceratophyllaceae Genus Ceratophyllum
Propagation Head cuttings, side shoots Growth rate fast
pH 6 - 8 Water hardness 5 - 25 °dh
Advice Recommended as an algae stopper for all new installations. Care instructions

The hornwort is a cosmopolitan plant that can be found in many bodies of water around the world. We found the free-floating stem plant in huge populations in a tributary of the Rio Miranda on the edge of the Pantanal in South America. The growth rate of the stems is enormous, so they have to be constantly pruned. Ceratophyllum is considered a "miracle weapon" against algae growth. The explanation is quite simple: the plant is a strong nutrient consumer and removes the algae's food source. The use of hornwort is recommended for every new aquarium.


Wir sind sehr bemüht, dass unsere Pflanzen gesund und unbeschädigt bei Ihnen ankommen. Trotz grösster Sorgfalt, kann es vorkommen, dass Pflanzen durch den Postversand oder andere unvorgesehene Ereignisse, leicht beschädigt sind. Dazu zählen braune Blätter gleichermassen, wie abgeknickte Zweige. Dafür übernehmen wir keine Haftung.

Aquarium: Community aquarium, Nano aquarium, Perch aquarium
Genus: Ceratophyllum - Hornwort
Growth: fast
Origin: Worldwide
Properties: Floating plants
Stand: In the background
Composition
Feeding recommendation
Technical details
Size information

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1 June 2026 06:39

Top!

Fast delivery, good quality, very well packaged and reasonably priced.

7 June 2025 15:04

Fast and competent delivery Thank you

good quantity I hope that I can keep the algae in my goldfish tank under control.

20 March 2025 15:58

Excellent quality, but should be shipped without slugs.

The quality and proportions of the plant are very good, while the negative is that it was contaminated with snails.

30 July 2021 05:44

Again and again!

Beautiful healthy herb!

4 March 2021 14:25

Top

The hornwort was frozen but recovered quickly and is doing great in the aquarium

17 September 2020 19:30

We are satisfied.

Very good!

29 March 2019 17:41

Bien embaler pousse vit

Bien embaler pousse vit

30 November 2018 14:38

Top

Top

14 January 2018 11:17

Cool Everything super...

Cool Everything super

15 December 2017 18:00

Good delivery condition. Good...

Good delivery condition. Good condition The further development of the plants will only become apparent later!

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Dwarf water lily – Nymphaea Pygmaea Alba (18cm)
Nymphaea pygmaea ‘Alba’ – dwarf water lily white-yellowThe dwarf water lily Nymphaea pygmaea ‘Alba’, with its white-yellow flowers, adds a serene, elegant touch to the water’s surface. Thanks to its compact growth habit, it is particularly suitable for smaller garden ponds or basins where a classic water lily would be too vigorous. Ideal if you want a delicate floral effect without the pond looking ‘overcrowded’.Dwarf water lily – suitable for smaller pondsFlower colour: white-yellowGrowth habit: compact, with a modest foliage and flower displaySuitable for: garden pond, mini-pond, pot/tank (depending on the setup)Technical dataBotanical name: Nymphaea pygmaea ‘Alba’Common name: Dwarf water lilyFlower colour: white-yellowPlanting depth: between -10 and -40 cmFlowering period: from June to September Pot size: approx. 18 cmWith the dwarf water lily Nymphaea pygmaea ‘Alba’, you can create particularly stylish water features – even if your garden pond is rather small or you wish to plant in a mini-pond . Dwarf water lilies are designed to create the classic water lily effect in a limited space: the leaves float on the surface, whilst the delicate water lilies emerge from them.The ‘Alba’ variety impresses with a white-yellow flower colour, which has a very calming effect and can be easily combined with various pond and border plants. The choice of plants is particularly crucial in smaller ponds: water lilies that grow too vigorously can quickly dominate the surface. The dwarf water lily remains comparatively more compact and is therefore ideal if you want to keep the water’s surface deliberately open. At the same time, water lilies create a pleasant pond atmosphere: the flowers draw the eye to the water, and the floating leaves give the pond a natural ‘centre’. For good establishment, a stable position is important – ideally in a planting basket or a suitable container, so that the substrate and rhizome are securely in place and you can adjust the position if necessary.If you’re looking for subtle, high-quality blooms and want to opt for a compact water lily, Nymphaea pygmaea ‘Alba’ is a suitable choice for a well-maintained, natural-looking pond design. Note on dispatch: We do our utmost to ensure that our plants arrive at your address healthy and undamaged. Despite taking the utmost care, plants may occasionally sustain minor damage during postal delivery or due to other unforeseen circumstances. This includes brown leaves as well as snapped stems. We accept no liability for this. Do not plant in open waters such as lakes or biotopes.Zoo-Roco tip: With dwarf water lilies, it’s worth placing the plant a little higher to begin with and then lowering it later if necessary – this usually helps it to grow more quickly. If you’re planting in a pot/mini-pond, make sure the water lily gets enough sun and isn’t shaded by plants around the edge.

CHF 35.00

Attraction water lily (18cm) - red
Nymphaea 'Attraction' - Red water lily in a 3-liter basket (18 cm) Intense red flowers for elegant accents in the garden pondNymphaea 'Attraction' is a particularly popular variety among the red water lilies. With its large, deep red flowers and rich, green floating leaves, it adds a bright splash of color to any garden pond. Supplied in a sturdy 3-liter planting basket (18 cm diameter), it is ready to plant immediately for medium pond depths.Flower color: redPlanting depth: -40 to -80 cmFlowering time: June to September (VI-IX)Hardiness zone: Zone 4 - hardy & robustLarge planting basket for vigorous growthNymphaea 'Attraction' opens its beautiful flowers during the day and closes them at dusk - a fascinating play of nature. Its shady leaves also help to keep the pond water clear.Elegance in red - a colorful, hardy water lily for every ornamental pondWe make every effort to ensure that our plants arrive at your doorstep healthy and undamaged. Despite the utmost care, it is possible that plants may be slightly damaged during postal delivery or due to other unforeseen circumstances. This includes brown leaves as well as broken branches. We accept no liability for this. Do not plant in open waters such as lakes or biotopes.

CHF 59.00

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Lysimachia Nummularia Lysimachia Nummularia is a second level aquarium plant that does well in emersed (above water) form. Easy to grow and tolerant of requirements.Difficult to grow: moderately demandingLight requirements: mediumCO₂ requirements: mediumOutgrown plant height: up to 60 cmGrowth: fastTemperature: 15-26 °Placement in aquarium: Second levelOrigin: EuropeCup diameter: 6 cmLysimachia Nummularia (Sedentary Lysimachia), is an aquatic plant that spreads easily on the bottom when it inhabits the banks of ponds and pools. It has a weakly branched structure. The roots grow in clumps or singly near the round, heart-shaped leaves. If well cared for and not pruned, it can bloom above the surface of the aquarium with yellow flowers.It grows quickly if you provide it with a loamy, sandy substrate along with good light and provide it with enough CO₂ gas fertilizer. Low temperatures don't bother her, but at higher temperatures her growth accelerates considerably, so she can be difficult to control. It prefers soft and slightly acidic water in the aquarium. It feels comfortable at a pH of 6-8. In order to have distinctive, heart-shaped leaves with an intense green color, it requires lots of nitrogen. A nitrogen deficiency will cause the plant to restrict its growth and not climb as much. It is therefore advisable to fertilize it regularly with nitrogenous products and to plant it in aquariums with lots of fish. The hedgehog tree generally grows vertically, without forming too many branches.It grows well in an aquarium with tropical fish, but also in cold biotopes of European waters or on the banks of ponds. Propagation is very simple: just cut the top shoot of the plant and plant it in the substrate, where it will take root. You will achieve the best decorative effect if you plant the plant in small groups of 15-20 specimens. If the shoots are not cut off when it reaches the water table, the plant will continue to grow into an emerse form. Its green-yellow color stands out well against other plants in the aquarium. Lysimachia does well in a hydroponic filter, from which it grows out and forms a green waterfall of leaves that flows into the aquarium. It can also be used in humid terrariums, paludariums or gardens. In a well-lit and regularly sprayed "garden in a jar", it also pleases our eyes with its delicate appearance and rich green color.Planting: The plant must be removed from the cup and thoroughly rinsed from the gel under running water. This is best done by placing the plant in a container of lukewarm water. Most of the gel will then fall off by itself. Divide the contents of the cup into 3-4 cm lumps and then place them in the substrate..

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Pogostemon erectus
Pogostemon erectus - aquarium plant from South Asia max. growth height - 40 cm Country of origin South Asia Suitability Aquascaping, community aquarium, NanoCube Type Stem plant family Lamiaceae Genus Pogostemon Propagation Head cuttings, side shoots Growth rate medium pH 5 - 7 Water hardness 10 - 25 °dh Notes   Another novelty from India is Pogostemon erectus. This stem plant forms very fine leaf needles in a beautiful light green colour. It is not too difficult to cultivate if sufficient light and Co2 are available. This Indian beauty is very suitable for aquascaping in combination with red or brownish plants. The growth rate is in the medium range. A group of plants can be radically pruned - the stems quickly sprout many new side shoots and the plant population becomes denser and more compact.

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Duckweed portion
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CHF 5.00

Egeria densa "Dense" - Dense waterweed
Egeria densa "Dense-leaved" (Dense-leaved waterweed) max. growth height 60 - 80 cm Country of origin Argentina, Brazil, Uruguay Suitability Community aquarium, garden pond Type Stem plant Family Hydrocharitaceae Genus Egeria Propagation Cuttings Growth rate fast pH 5 - 9 Water hardness 0 - 30 °dh Notes   The waterweed, as it is known by its German trade name, already indicates its growth characteristics. Egeria densa is probably one of the best-growing plants of all and is completely unproblematic to cultivate. Native to south-east Brazil and Argentina, it is now naturalised on all continents. In the "dense-leaved" variety, the leaves on the stem are extremely dense and compact. It also grows very well planted or free-floating in a garden pond, but is only hardy to a limited extent.We make every effort to ensure that our plants arrive healthy and undamaged. Despite the greatest care, it can happen that plants are slightly damaged due to postage or other unforeseen events. This includes brown leaves as well as broken branches. We accept no liability for this.

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Hygrophila corymbosa - cherry leaf - giant water lover
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Hygrophila polysperma - Indian waterweed
Hygrophila polysperma (Indian water lily) max. growth height - 50 cm Country of origin  India, Sri Lanka and Thailand Suitability Discus aquariumCommunity aquarium Type  Stem plant Family Acanthaceae Genus Hygrophila Propagation Cuttings Growth rate fast pH 5 - 9 Water hardness 10 - 30 °dh Notes  Cut back regularly. Hygrophila polysperma is one of the "easiest" plants in the aquarium hobby. Even under the worst conditions, it can continue to grow to some extent. If the growing conditions are improved, the plant naturally thrives much better. With good lighting, the tips of its shoots turn a reddish brown colour. It grows very quickly, so it needs to be cut back more often than other stem plants. Highly recommended for initial planting and as an algae preventative.

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Limnophila sessiliflora - Small Ambulia
Limnophila sessiliflora / small Ambulia max. growth height - 50 cm Country of origin Southeast Asia Suitability Community aquarium Type Stem plant family Scrophulariaceae Genus sessifloria Propagation Head cuttings, side shoots Growth rate  fast pH 5 - 8 Water hardness 10 - 20 °dh Notes   A widespread stem plant in Asia. In the emersed stage it is small with densely leafed shoots. In the aquarium, the leaflets are much more pronounced and the colour is now light green. Limnophila sessiliflora is a good alternative to the more light-demanding Cabomba plant. As with many delicate stem plants, it should also be planted in a larger number of stems as a group. With good lighting, the tips of its shoots turn rusty brown.

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