Microsorum pteropus "Red"

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

Should be attached to rocks or driftwood using thread, fishing line, or specialized plant glue. It fits beautifully in the midground where its unique colors can be easily observed. Never bury the horizontal rhizome, as doing so will cause it to perish.

Botanical form

Rhizome

Distinguished by the reddish-brown to copper coloration of its newly emerging leaves, which eventually mature into a standard deep green. The leaves are broad and robust, featuring the classic leathery texture of Java ferns. It forms dense, colorful clusters that add a unique visual element to the tank.

Growth

Slow

Grows quite slowly, meaning it requires very little maintenance over the long term. Patience is needed, as it can take several weeks for it to acclimate and start producing new foliage. Growth can be moderately boosted by the addition of CO2 and appropriate lighting.

Substrate

None

Microsorum pteropus "Red" is an epiphytic fern that thrives when attached to hardscape rather than being planted in soil. Its rhizome must remain fully exposed to the water column to prevent decay and promote healthy development. The plant utilizes its robust, clinging roots exclusively for structural grip on wood or stones, drawing its nourishment entirely from dissolved nutrients in the water.

Column fertilization

Recommended

Relies almost exclusively on nutrients dissolved in the water column to sustain its growth. Regular dosing of a complete liquid fertilizer rich in micronutrients and potassium is highly recommended. Iron supplementation can help intensify the red coloration of the new fronds.

Root fertilization

None

Substrate fertilizers are not useful for this epiphyte, as it does not absorb nutrients through a buried root system. The dark, wiry roots are designed for attachment rather than feeding. All nutritional needs should be met via liquid dosing.

Trimming

Occasional

Maintenance involves snipping off any old, decaying, or excessively green leaves to make room for new red growth. Always trim at the base of the stem near the rhizome using sharp aquascaping scissors. Regular selective pruning keeps the plant looking tidy and vibrant.

Propagation

Cuttings

Propagates simply by cutting the rhizome into pieces, ensuring each section has at least a couple of leaves. The plant also reproduces by developing small adventitious plantlets on the undersides or tips of older leaves. These plantlets can be carefully detached and replanted once they have a few roots.

Sensitivity

Moderate

Highly resilient, but it will suffer if the rhizome is suffocated in the substrate. Intense lighting may encourage the red hues but can also lead to algae issues if nutrients are not balanced. It adapts well to a wide range of temperatures and pH levels.

Layout role

Epiphyte, Midground, Background

Serves as a superb accent plant in the midground to break up monotonous green textures. The reddish new leaves provide a subtle yet beautiful contrast against standard green ferns and mosses. It works exceptionally well in shaded areas of the aquarium where other colorful plants might fail.