Ceratopteris cornuta

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

It is incredibly versatile and can be grown rooted in the substrate or left to float at the surface. When rooted, it forms a large, impressive rosette, while floating allows its roots to trail beautifully in the water.

Botanical form

Rosette

It features broader, less deeply divided leaves compared to other Water Sprite varieties, giving it a somewhat more substantial appearance. The bright green, lobed fronds add a lush, tropical feel to the aquarium.

Growth

very-fast

It exhibits a very fast growth rate, especially when allowed to float near the light source. Regular pruning is necessary to prevent it from overshadowing neighboring plants.

Substrate

Medium

Ceratopteris cornuta features a moderate substrate demand, benefiting from a moderately nutrient-rich bed to support its robust root system. When planted, its thick roots spread efficiently through fine gravel or aqua soil to extract essential minerals. A substrate depth of 4-6 centimeters ensures adequate anchorage for its large, buoyant fronds. Alternatively, it can also adapt to growing as a floating plant, though a fertile substrate encourages a more substantial, anchored growth form.

Column fertilization

Recommended

It feeds aggressively from the water column, particularly when grown as a floating plant. Regular dosing of liquid macronutrients and trace elements is highly recommended to support its rapid development.

Root fertilization

None

When planted in the substrate, it develops a substantial root system that benefits from nutrient-rich soil or root tabs. However, it can thrive perfectly well without substrate fertilization if the water column is rich.

Trimming

Occasional

To trim, older, larger outer leaves can be removed at the base to control the plant's overall size. Floating specimens may need their trailing roots trimmed if they become too long and messy.

Propagation

Division

Propagation is very easy, as adventitious plantlets frequently form on the edges of older, mature leaves. These small plantlets can be carefully detached and replanted or allowed to float once they have developed their own roots.

Sensitivity

Moderate

It is a generally hardy plant but the delicate fronds can be easily damaged by boisterous or herbivorous fish. It prefers moderate to high lighting and may become pale or leggy in shaded areas.

Layout role

Midground, Background

In the layout, it serves as a stunning midground or background focal point when rooted. As a floater, its trailing roots create a natural, jungle-like ambiance while providing excellent cover for surface-dwelling fish.