Octodiceras fontanum

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

It should be firmly attached to hardscape materials such as driftwood or rocks. Placed in the foreground or midground, it adds a soft, natural texture. It should not be planted directly into the substrate.

Botanical form

Moss

A delicate, feathery moss with a deep, dark green color and a distinct cascading or weeping growth habit. The fronds resemble tiny fern leaves. It grows outwards and downwards from its point of attachment.

Growth

Medium

The growth rate is notably slow. It takes considerable time to establish and form the thick, lush mats it is prized for. Patience is required when cultivating this moss.

Substrate

None

Column fertilization

Required

Minimal liquid fertilization is needed. A very lean dosing approach is recommended to prevent algae from choking the slow-growing fronds. Occasional micronutrient dosing can help maintain its deep green color.

Root fertilization

None

Completely unnecessary, as it does not have true roots and does not feed from the substrate. It absorbs all necessary nutrients directly from the water column through its 'leaves'.

Trimming

Regular

Trim sparingly to shape the moss. Avoid heavy pruning, which can expose the underlying hardscape and takes a long time to regrow. It's better to gently pull away excess growth rather than using scissors.

Propagation

Division

Propagation is very straightforward. Simply tear off a small clump from an established mat and reattach it to a new piece of hardscape using thread, fishing line, or cyanoacrylate glue.

Sensitivity

Moderate

Extremely sensitive to algae growth and debris accumulation. It requires excellent water circulation to keep detritus from settling in the fine fronds. It prefers cooler water temperatures.

Layout role

Midground, group, accent

Incredible for softening hardscape edges and adding an aged, natural look to wood and rocks. Its cascading nature makes it perfect for mimicking weeping willow trees in aquascapes.