Bolbitis heudelotii
Stunning dark-green feathery fronds with deeply divided leaves. Slower than Java fern but more ornamental. Needs flow for healthy growth, stagnant water causes detritus collection on the fronds. Pairs beautifully with Anubias on a single piece of driftwood.
African Water Fern (Bolbitis heudelotii) is a rhizome / epiphyte aquatic plant for the midground to background of a planted tank. It reaches 15–40 cm under good conditions and grows at a slow rate. Light: low to medium. CO₂: recommended. Target 20–26 °C, pH 5.5–7.0, and 1–8 dGH. Substrate: Attach to wood or stone, never bury rhizome. Propagate via rhizome division.
Care at a glance
Stunning dark-green feathery fronds with deeply divided leaves. Slower than Java fern but more ornamental. Needs flow for healthy growth, stagnant water causes detritus collection on the fronds. Pairs beautifully with Anubias on a single piece of driftwood.
By Mike ElmiraUpdated 2 min read
Part of our complete guide to the planted aquarium.
The parameters that decide whether african water fern fits in your tank.
Dryopteridaceae
Rhizome / Epiphyte
Midground to Background
Attach to wood or stone, never bury rhizome
Rhizome division
Rocks in fast-flowing rivers of West Africa
Central and West Africa
Tank-mate safety and the species this one is documented to thrive (or fail) alongside.
Hard-won lessons from the tank.
Treat exactly like Anubias and Java fern — attach to wood or stone with cotton thread or cyanoacrylate gel, never bury the rhizome. Needs flow more than the others — place it in the current path from filter outflow. The feathery dark-green fronds contrast beautifully with Anubias' broad leaves on the same driftwood. Slower than Java fern but visually more dramatic.
What can go wrong and how to spot it.
Failure modes, in order of how dramatic the fix is.
Yellow new growth: iron + CO₂. Pale: nitrogen. Frond melt at attachment point: rhizome rot from being buried.
Detritus traps in the feathery fronds if flow is too low. Direct flow over the plant prevents algae. BBA on slowing growth.
The practical routine, read top to bottom.
Light water-column feeder. CO₂ recommended for full feathery development; without CO₂ grows slower and slightly smaller. Iron dosing improves dark-green colour. Root tabs ignored.
Cut damaged fronds at the base. Snip rhizome at a node with at least 3 healthy fronds to propagate; attach divided piece to fresh hardscape.
Where it comes from, how it behaves, and the variants you'll see at retail.
Where it lived before it came home.
Streamside vegetation in West and Central Africa, growing on rocks and roots in fast-flowing oxygenated water. Often partially emersed during dry seasons.
Easily grown emersed in humid conditions with slightly stiffer fronds. Most wholesale arrives emersed.
Doesn't flower. Propagates via rhizome division.
The named cultivars and the lookalikes worth flagging.
B. heudelotii (standard). B. heudelotii 'Difformis' (broader leaves), B. heteroclita (smaller relative from Asia). All similar care.
Often confused with Java fern in the shop. Bolbitis has finer feathery fronds; Java fern has flat strap leaves. Both are epiphytes with similar attachment requirements.
Direct answers to the questions search engines and AI assistants surface most often about this species.
CO₂ requirement: recommended. Light requirement: low to medium. Under low-tech conditions the plant grows at a slow rate.
African Water Fern (Bolbitis heudelotii) needs low to medium light. Run a photoperiod of 6–8 hours; longer photoperiods invite algae unless CO₂ and dosing are dialled in.
Position: midground to background. Substrate: Attach to wood or stone, never bury rhizome It typically reaches 15–40 cm.
Propagation method: Rhizome division. African Water Fern is a rhizome / epiphyte plant.
Target 20–26 °C, pH 5.5–7.0, and 1–8 dGH. Flow tolerance: medium to high.
Difficulty: 3/5. Intermediate, stable parameters and a mature tank matter.
A planted tank is a system. Pair this plant with one entry from each other pillar to plan the whole scape.
