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Hornwort (Ceratophyllum demursum)
Product Notes:
· We cannot ship this product to California.

Quick Stats

Care Level Easy
Color Form Green
Water Conditions 59-86° F, KH 5-15, pH 6.0-7.5
Max. Size 2'
Origin Farm Raised
Family Ceratophyllaceae
Lighting Moderate
Supplements CO2 Fertilization, High Quality Aquarium Fertilizer
Placement Background
Propagation Side Shoots
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The Hornwort Plant, also known as Coontail, is an attractive aquatic plant popular among freshwater aquarium hobbyists as well as pond keepers and water gardeners thanks to its undemanding care requirements and vigorous growth. The semi-translucent nature of the Hornwort Plant enhances its beautiful vibrant green coloration. In fact, under bright light and in clear water, the Hornwort Plant appears to be enveloped in a gorgeous green glow.

In addition to its aesthetic value, the Hornwort Plant is highly prized among pond keepers as it plays an important role in improving pond water quality and water clarity. The Hornwort Plant is a fantastic oxygenating plant that efficiently processes dissolved carbon dioxide, converting it into oxygen vital to goldfish, koi, and other pond fish. In addition to oxygenating pondwater, the Hornwort Plant excels at consuming nitrogenous waste materials that is not only toxic to pond fish but can also fuel aggressive nuisance algae growth. To top it off, the Hornwort Plant emits a plant hormone that can inhibit the growth of blue-green algae, making it a fantastic natural remedy for common pond water quality and clarity issues.

The Hornwort Plant should be handled with care when planting as the foliage and stems are somewhat brittle. In the wild, the Hornwort Plant is found free-floating in gently-moving and still waters or loosely anchored in muddy bottoms. For the home pond or water garden, the Hornwort Plant can be treated as a floating plant or potted in small aquatic planters or planted directly in gravel on the pond bottom. Once established, the Hornwort Plant grows quickly to provide much needed shade and protection for your pond fish, as well as a potential spawning site for fish. Under ideal conditions, the Hornwort Plant can produce stems 24" in length or longer with numerous side shoots. Cuttings removed from healthy mature plants can be replanted to help manage growth and to propagate new plants.

In temperate areas where the pond water temperatures begin to fall, the tips of the Hornwort Plant will shorten and thicken before falling off and settling on the pond floor to spend the winter as buds. In spring, these buds grow to repopulate the pond. Zones 4 to 11

Approximate Purchase Size: 6" to 8"

Customer Testimonials

James K James Store , VA
I purchased this plant about a month ago and it has taken very well to my aquarium. It is growing like wildfire and all i am using is supplemental nutrients once a week and a DIY Co2 injector. I have this planted in a 55g aquarium.
Lorin P Mount Prospect , IL
I have a 55g tank and have had hornwort for several months now. I plant some of it and the other I let float. It's a really easy plant that doesn't require strong lighting, and it will grow EXTREMELY fast. When I first purchased my plants they were about 6 inches high, and within a week had grown several inches. It's also a decent plant because my fish don't seem to nibble on it as much as they do with the leafier plants.
Shelia Ball Farber , MO
I ordered this a month ago and got plenty of it. I have it in two different aquariums and it looks great.
1-3 of 3 testimonials

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