Fissidens fontanus

Fissidens fontanus is a beautiful North American Fissidens species producing delicate, dark green fronds with a soft, flowing, feather-like appearance that many aquarists compare to peacock feathers. Each frond consists of small, paired leaflets arranged symmetrically along a central axis — a precise, elegant structure that creates extraordinary fine detail when the moss is attached to hardscape and observed up close.

Planting tip: Fissidens fontanus should be attached to driftwood, rock, or mesh with its fronds exposed to the water column. Use cotton thread or aquarium-safe adhesive to secure it, and the plant will anchor itself naturally over time. Good water circulation supports healthy growth.

Like all aquatic mosses and Fissidens, fontanus should be attached to driftwood, rock, or mesh with the fronds exposed to the water current. It can also be tied to surfaces with cotton thread or secured with aquarium-safe adhesive. Good water circulation is beneficial, reflecting the natural stream habitat of this North American species. Once attached, it spreads gradually across the hardscape surface as its rhizomes establish.

Fissidens fontanus is an easy to moderate plant that grows in low to moderate lighting without requiring CO₂ supplementation. Temperatures between 68 and 82°F and a pH of 6.0 to 7.5 provide comfortable conditions. Regular liquid fertilization supports steady growth. Growth is moderate for a Fissidens species — faster than most but still deliberate enough to require patience before a full display develops.

In the aquascape, Fissidens fontanus creates exceptionally fine-textured, feather-like foreground and midground detail on driftwood and rock. The delicate frond structure is one of the most botanically refined of all commonly available aquatic mosses, creating a lacy, naturalistic covering that photographs beautifully and rewards close observation. It pairs naturally with other fine-textured mosses and small foreground plants in detailed aquascape compositions.

Fissidens fontanus is a beautiful and botanically elegant moss for aquarists who appreciate the finer end of aquatic moss aesthetics. Its feather-like fronds and North American botanical authenticity make it a genuinely rewarding moss for detailed hardscape compositions.

Care & Specifications