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Anubias Care: The Plant You Cannot Kill

5 min read
#anubias#low tech#rhizome#beginner#hardscape
Anubias Care: The Plant You Cannot Kill
Quick facts
Light
Low–Medium
Growth
Very slow
Placement
Midground–Background
Difficulty
Easy
CO₂
Not required
Substrate
None needed

If there’s a single plant we’d hand to every new aquarist, it’s Anubias. It’s slow, it’s tough, and it asks for almost nothing. Attach it to a rock or a piece of driftwood, put it anywhere in the tank, and forget about it.

Native Range and Natural Habitat

Anubias comes from the rivers and streams of tropical West and Central Africa — Cameroon in particular is home to most of the species in the trade. In the wild it grows attached to rocks and submerged roots in shaded, slow-moving water under dense rainforest canopy, which is exactly why it’s such a committed low-light plant in an aquarium: strong, direct sun is simply not part of its native environment.

Anatomy: Rhizome, Roots, and Leaves

Anubias grows from a rhizome — a thick horizontal stem that both leaves and roots emerge from. The rhizome stores energy reserves, which is a big part of why the plant can coast through low light, missed water changes, or a move between tanks without missing a beat. The roots anchor it to hardscape rather than feed it, and the leaves themselves are thick, waxy, and dark — tough enough that most fish and snails leave them alone entirely.

Varieties Worth Knowing

All of them ship well and transition out of the bag with barely any melt — which is exactly why they’re a staple in every pack we send out.

Planting: The One Rule That Matters

Do not bury the rhizome. Anubias attaches to hardscape — it should never be pushed into substrate. If the rhizome ends up covered, it will rot within weeks; only the roots should ever touch the substrate.

Hold the rhizome against a piece of driftwood or rock and tie it loosely in place with thin cotton thread, fishing line, or a plant anchor tie. Alternatively, apply a small dot of aquarium-safe super glue gel (cyanoacrylate) to the bottom of the rhizome, press it against the hardscape, and hold for 30–60 seconds. Cotton thread degrades harmlessly in water over four to six weeks; by then the roots have gripped the surface and the plant holds on its own.

Light and Placement

Position Anubias in a lower-light spot — partially shaded by taller plants, or simply away from the most direct overhead light. It actively prefers shade and is one of the few aquarium plants that genuinely performs better under reduced light. See choosing a planted tank light if you’re setting up a tank where Anubias needs to share space with brighter-loving plants — placing it low and shaded solves most conflicts.

Water Parameters

Anubias tolerates an unusually wide range of water chemistry without complaint:

Feeding

Like most hardscape epiphytes, Anubias takes essentially no nutrition from the substrate — the water column is its only real food source. Seachem Flourish dosed weekly is genuinely the entire fertilizer program here. Root tabs do nothing for it since the roots aren’t feeding structures; save those for substrate-rooted plants. Growth is slow either way, but a fertilized Anubias produces noticeably larger, darker leaves than an unfertilized one over the course of months.

Growth and Maintenance

This is about as low-maintenance as aquarium plants get. Because it’s so slow-growing, Anubias rarely needs trimming — mostly you’re just removing the occasional yellowing or algae-covered leaf at the rhizome so the plant can put energy into new growth instead. Its tough leaves can also handle a gentle wipe or scrape to remove algae film without damage, which isn’t true of most softer-leaved plants.

Propagation

Propagation is entirely rhizome-based. As the rhizome lengthens over months, it develops new growth points and occasionally branches on its own. To propagate deliberately, cut a mature rhizome into sections with a clean blade, making sure each section keeps a few leaves and visible root growth, then tie or glue each piece to its own new hardscape. Both halves will continue growing independently.

Common Problems

Anubias has very few real ailments, but one issue comes up constantly:

Pests

Anubias attracts almost no pests directly — its thick, tough leaves are unappetizing to most fish and snails alike, which is part of why it survives so well in mixed community tanks. The one thing to watch for is hitchhiker snails riding in on store-bought specimens; a quick rinse and visual check before adding a new plant catches most of them.

Gear mentioned in this guide
Seachem Flourish — Liquid Plant Supplement
Seachem Flourish — Liquid Plant SupplementAnubias has no substrate roots to feed since it lives tied to hardscape, so a light weekly water-column dose is genuinely the entire fertilizer routine this plant needs.

Affiliate disclosure: links above may earn a small commission at no extra cost to you.

Grow the plants from this guide

The 5+ Species Pack is the easiest way to get a variety of these textures in one order.

Frequently Asked Questions

Can Anubias grow out of water?

Yes — in the wild it grows along shaded riverbanks partially emersed, and it does fine as a bog or terrarium plant in high humidity. It's usually grown fully submerged in aquariums for the classic look.

Does Anubias need CO2?

No. It's one of the slowest, least demanding plants in the hobby and grows fine on ambient CO2. Injected CO2 speeds it up only slightly — it's never required.

Why does my Anubias have algae on it but nothing else does?

Its leaves grow so slowly that algae has time to colonize them before the plant can outgrow it — this is the single most common Anubias complaint, and it's almost always a sign the light is a bit too strong for how slowly this plant turns over leaves.

How big does Anubias get?

It depends heavily on the variety. Anubias nana petite stays under 2 inches, standard nana reaches 4–6 inches, and Anubias barteri or frazeri can reach 12–16 inches with a wide leaf spread over time.

Do Anubias plants spread on their own?

Yes, slowly. The rhizome lengthens and branches over months and years, producing more leaves along the way. It can also be cut into sections by hand to propagate multiple plants.

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