Ceratopteris thalictroides is a pantropical fern, 15-30 cm high and 10-20 cm wide..This plant normally grows fast, but the addition of CO2 may be necessary to promote growth. In small, open aquariums, it can grow out of the tank and form beautiful surface leaves. The finely branched leaves are very decorative and provide good contrast to other leaf shapes. In good light Ceratopteris thalictroides grows fast and helps prevent algae by consuming large amounts of nutrients. This makes it a good starter plant in small aquariums.Plant infoType: RosulateOrigin: AsiaCountry or continent where a plant is the most common. Cultivars arise or are bred in cultivation.Growth rate: HighGrowth rate of the plant compared to other aquatic plants.Height: 15 - 30+Average height (cm) of the plant after two months in the tank.Light demand: MediumThe average or medium light demand of an aquarium plant is 0,5 W/L.CO2 : LowA medium need in CO2 is 6-14 mg/L. A high demand in CO2 is approx. 15-25 mg/L.