Ceratophyllum demersum

Common Name:

Family Name:

Native To:



Growth Demands:                  

Growth Form:

Growth Rate:

True Aquatic:

Placement in Tank:

Available As:

Hornwort, Coontail


North America

Moderate to Strong

6 - 8                       


Stem Plant



Mid - Background


Ceratophyllum demersum


Ceratophyllum demersum is one of the most popular aquarium plants in the trade.  Hornwort, or Coontail as it is more commonly reffered to is  able to tolerate a wide range of aquatic conditions which is the reason for its popularity.  Ceratophyllum demersum is also very common is the water garden industry where is is used as an oxgenating plant for small water features and ponds.  Hornwort is fine with just being floated in a body of open water and can be broken into pieces to establish new plants.  Ceratophyllum demersum is native to the United states and makes an excellent habitat for fish to lay eggs on or hide in.        

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