Anubias barteri var. nana 'Round Leaf'

Species description

Care, breeding and tankmates

Plant profile

Placement

Foreground

This variety is perfect for the midground or foreground of the aquarium. It should always be attached to driftwood or rocks using thread or glue. Burying the rhizome in the substrate will inevitably cause rot and plant death.

Botanical form

Rhizome

It is characterized by its distinctive, perfectly round, dark green leaves. The plant grows from a creeping rhizome that produces strong, thick roots for anchoring. It is slightly larger than the 'Petite' variety but maintains a compact form.

Growth

Slow

Like most Anubias species, the growth rate is very slow and steady. It may take weeks to produce a single new round leaf. This slow pace makes it an excellent choice for low-maintenance aquariums, as it rarely requires pruning.

Substrate

None

The Anubias barteri var. nana 'Round Leaf' functions primarily as an epiphyte and thrives when completely detached from conventional aquatic soils. Its thick rhizome must remain fully exposed to the water current, while its robust roots can freely cascade over hardscape materials to establish a firm grip. While the trailing roots may eventually reach and lightly penetrate a sandy or gravel substrate, they serve strictly for structural anchoring rather than nutrient absorption. Optimal growth is achieved by tying or gluing the plant directly to wood or stone, relying entirely on the water column for fertilization.

Column fertilization

Recommended

It absorbs the majority of its required nutrients directly from the water column. Sparing use of liquid fertilizers will prevent nutrient deficiencies without causing algae blooms. Additions of iron and potassium can enhance the deep green coloration.

Root fertilization

None

Root tabs are ineffective for this epiphytic plant, as its roots are not designed for soil absorption. The roots function primarily to hold the plant securely to hardscape elements. It relies entirely on water column nutrients.

Trimming

Occasional

Pruning is seldom needed due to its unhurried growth habit. When necessary, use clean, sharp scissors to snip off old, dying, or algae-covered leaves close to the base. This redirects the plant's energy toward producing healthy new growth.

Propagation

Rhizome division

Propagation is achieved by carefully cutting the rhizome into smaller sections. Ensure that each new piece has at least a few healthy leaves and intact roots. These sections can then be tied or glued to new hardscape locations.

Sensitivity

Moderate

It is susceptible to spot algae if exposed to high light for extended periods. Placing the plant in the shade of larger plants or hardscape can prevent this issue. The rhizome is extremely sensitive to being buried in substrate.

Layout role

Foreground, Midground, Epiphyte, Nano, group

Its unique round leaves provide excellent textural contrast in aquascape designs. It is often used to create a focal point in the midground or to detail pieces of wood. The dark green foliage stands out beautifully against lighter plants.