Tiny, tough, and impossibly slow-growing — the petite powerhouse of nano aquascaping. Anubias nana 'Petite' care is about as low-maintenance as aquarium plants get: this dwarf rhizome plant thrives in low light, needs no CO2, attaches to wood and rock instead of substrate, and grows so slowly you'll measure progress in months. It's the plant for shaded corners, nano tanks, and aquascapers who value permanence.
This guide covers the rhizome rule (the one thing you must not do), attaching techniques, light and algae management, propagation by rhizome division, and troubleshooting its slow-paced problems.
Quick Care Reference
| Parameter | Requirement |
|---|---|
| Light | Low (20–40 PAR) |
| CO2 | Not required |
| Growth rate | Very slow |
| Placement | Foreground to midground (on hardscape) |
| Difficulty | Very easy |
| Temperature | 68–82°F (20–28°C) |
| pH | 5.5–8.5 |
| Height | 1–3 inches (2–8 cm) |
Meet the Petite
Anubias nana 'Petite' is a dwarf cultivar of Anubias barteri var. nana — itself already small — selected for even tinier leaves, often under an inch long. Where standard Anubias suits midground wood, the Petite version details nano hardscape: speckling branch tips, edging stone seams, carpeting crevices with miniature dark-green foliage.
Like all Anubias, it's an epiphyte — in nature it grows attached to rocks and wood in shady African streams, not rooted in substrate. This defines its entire care: attach it, shade it, and leave it alone. Its thick, waxy leaves resist herbivorous fish that shred softer plants, making it one of the few plants suitable for tanks with goldfish, cichlids, or large plecos.
The Rhizome Rule (Read This First)
Anubias grows from a horizontal rhizome — the thick green stem from which leaves sprout upward and roots dangle downward. Never bury the rhizome in substrate. A buried rhizome rots, and a rotted rhizome kills the plant. This is the single most important fact in Anubias care, and violating it is the cause of most Anubias deaths.
Instead, attach the plant to hardscape: driftwood, rocks, or decorations. The dangling roots will eventually grip the surface on their own. You can also wedge it into crevices or let it sit on top of the substrate with the rhizome exposed — just never buried.
Attaching Techniques
- Cyanoacrylate super glue (gel) — the modern standard. Dab gel glue on the rhizome or roots, press to the hardscape for 30 seconds. Aquarium-safe once cured, instant hold. Use sparingly; a little goes far.
- Cotton thread or fishing line — tie the rhizome gently to wood or rock. The thread rots or can be removed once roots grip (4–8 weeks). Don't tie so tight you crush the rhizome.
- Wedge into crevices — push the plant into natural cracks in wood or between stones. Zero materials needed, and it looks the most natural.
- Rubber bands — quick and temporary; remove once attached to avoid constricting growth.
Position Petite on the shaded sides of hardscape or under overhangs — it prefers indirect light and its slow leaves algae-spot quickly under direct blast. In nano tanks, a few Petite rosettes on a central stone create an instant aged, natural look.
Light and Algae Management
Low light — 20–40 PAR — is ideal. Anubias evolved for shade, and the Petite's tiny, slow-growing leaves are particularly algae-prone under strong light. Green spot algae and brush algae colonize leaves that take months to replace, so prevention is everything:
- Place it in shade: under taller plants, on the shadow side of wood, beneath overhangs.
- Keep the photoperiod at 6–8 hours if Anubias dominates the scape.
- Maintain a cleanup crew — nerite snails and otocinclus are excellent on Anubias leaves; amano shrimp help too.
- For badly algae-coated leaves, a brief diluted hydrogen peroxide dip or gentle manual cleaning works; remove leaves that are beyond saving.
If your tank runs high light for other plants, Petite still works — just tuck it into the shadows those plants cast. It's the classic understory plant, thriving in the shade of the showpieces.
CO2, Fertilizer, and Water
CO2 is unnecessary — Petite grows fine without it, and CO2 barely speeds its glacial pace. Fertilizer needs are minimal: its slow metabolism uses little. In stocked tanks, fish waste suffices; in sparse tanks, light comprehensive liquid dosing helps. Avoid heavy dosing — excess nutrients with slow uptake just feeds algae on its leaves.
Water parameters are flexible: pH 5.5–8.5, soft to hard, 68–82°F. Stability matters more than values. It's also one of the few plants that tolerates the hard, alkaline water of African cichlid tanks — a rare bridge between the planted and cichlid worlds.
Growth and Propagation
Growth is very slow — a new leaf every few weeks, measurable size increase over months. This is a feature: Petite holds aquascape compositions unchanged for a year or more, making it ideal for stable, long-term layouts. Don't expect it to fill space; buy the coverage you want from the start.
Propagation is by rhizome division: once the rhizome has 6+ leaves, cut it with a clean blade between leaf clusters, ensuring each section has several leaves and roots. Attach the divisions as new plants. Divisions establish slowly — allow weeks before judging success. A single healthy rhizome becomes several plants over a year or two.
Troubleshooting Common Problems
Rhizome rot (mushy, brown rhizome)
Caused by burying the rhizome, or occasionally by damage during handling. Cut away all mushy tissue back to firm green rhizome with a sterile blade — be aggressive; rot spreads. Reattach the healthy portion. Prevention is just the rhizome rule: never buried, never crushed by ties.
Yellowing leaves
Old leaves naturally yellow and die — remove them at the rhizome. Widespread yellowing suggests nutrient deficiency (nitrogen or iron) or the rhizome struggling; check attachment and water quality. New leaves emerging yellow points to iron deficiency.
Algae-covered leaves
The Petite's curse — slow leaves under too much light. Move to shade, reduce photoperiod, add algae eaters, and manually clean or remove worst leaves. Long-term, the fix is placement: Petite belongs in shadows, not spotlights.
Holes in leaves
Potassium deficiency causes pinholes; hungry plecos or snails cause ragged damage. Supplement potassium if deficiency is suspected. Note that even "plant-safe" plecos may rasp Anubias when hungry — feed them adequately.
No growth for months
Normal. Seriously — Anubias nana 'Petite' can sit apparently unchanged for months, especially after the stress of purchase and reattachment. As long as the rhizome is firm and green and leaves aren't deteriorating, it's alive and will eventually grow. Judge in seasons, not weeks.
Design Roles
Petite is a detail plant: use it to age hardscape, soften stone edges, fill branch crotches, and create scale in nano tanks. A few rosettes transform bare wood into something that looks established. It combines beautifully with Bolbitis and Java fern for a full epiphyte composition — an entire aquascape with nothing planted in the substrate.
It's also the go-to for low-tech nano tanks: a 5-gallon with Petite on wood, Cryptocoryne wendtii in the substrate, and a moss accent is a complete, nearly maintenance-free aquascape.
Frequently Asked Questions
Can I plant Anubias nana 'Petite' in substrate?
Only with the rhizome fully exposed above the substrate — roots may go in, rhizome must stay out. Buried rhizomes rot. Safest practice: attach it to hardscape (wood, rock) with glue, thread, or wedging. This is the number one rule of Anubias care.
Why is it growing so slowly?
That's its nature — a new leaf every few weeks is normal. Anubias are among the slowest aquarium plants. Slow growth means low maintenance and long-lived compositions, but it also means buying the coverage you want upfront rather than waiting for spread. Firm green rhizome plus intact leaves equals healthy, however slow.
How much light does it need?
Low light — 20–40 PAR. It evolved for shady streams and its slow leaves algae-spot under strong light. In high-tech tanks, place it in the shade of taller plants or hardscape. If it's your main plant, a 6–8 hour photoperiod keeps algae at bay.
How do I propagate Anubias nana 'Petite'?
Divide the rhizome: cut between leaf clusters with a clean blade, ensuring each piece has several leaves and roots, then attach divisions to hardscape. Wait until the parent rhizome has 6+ leaves before dividing. Divisions are slow to establish — allow weeks.
Why are the leaves turning yellow?
Old-leaf yellowing is natural aging — remove spent leaves at the rhizome. Widespread yellowing indicates nutrient deficiency or rhizome stress; check that the rhizome isn't buried or rotting, and ensure some fertilization reaches it. New yellow leaves specifically suggest iron deficiency.
Is it safe with goldfish and cichlids?
Among the safest. Its thick, waxy, bitter-tasting leaves resist most herbivorous fish that destroy softer plants. Goldfish, African cichlids, and large plecos generally leave it alone. Attach it firmly — boisterous fish can dislodge loosely placed rhizomes even if they don't eat them.
Bringing It All Together
Anubias nana 'Petite' is the patient aquascaper's plant: tiny, tough, shade-loving, and nearly immortal when its one rule is respected. Glue it to wood, tuck it into shadows, and forget about it — it will outlast nearly every other plant in your tank, holding its miniature composition steady while faster plants come and go. In a hobby that rewards speed, Petite rewards permanence.
Tissue-culture plants are the exception — they’re grown in sterile gel and adapt with minimal melting, which is part of what you’re paying for. Plants bought submersed from another hobbyist’s tank also transition with little melt, since they’re already in the right form.
Which Plants Melt Most (and Least)
Heavy melters (expect significant leaf loss)
- Cryptocorynes — infamous for “crypt melt,” sometimes dropping every leaf after any disturbance. They almost always recover from the roots within weeks.
- Stem plants grown emersed — rotala, ludwigia, and hygrophila often shed lower emersed leaves while the growing tips transition.
- Amazon swords — emersed-grown swords typically lose their broad oval aerial leaves and replace them with longer submersed ribbon leaves.
Light melters
- Anubias, java fern, bucephalandra — slow-growing rhizome plants transition gradually; occasional old-leaf melt but rarely dramatic.
- Vallisneria — usually transitions well, though it dislikes the move itself and may sulk for a week.
- Floating plants — minimal melt since their leaves were already at the air-water interface.
The Acclimation Protocol
Step 1: Quarantine or dip first
Before acclimating to your tank’s conditions, make sure you’re not acclimating pests along with the plant. Run new arrivals through our quarantine and dip protocol — it adds days upfront but prevents months of regret.
Step 2: Float to temperature-match (30 minutes)
Float the bag or container in your tank for 20–30 minutes to equalize temperature. Plants are less temperature-sensitive than fish, but a 10°F shock on top of transplant stress is an avoidable insult.
Step 3: Trim before planting
Remove any leaves that are already damaged, yellowing, or heavily algae-covered — they won’t recover and they’ll rot in your tank, feeding algae. For stem plants, trim off the bottom inch and any emersed leaves that look unlikely to adapt; the plant wastes energy maintaining leaves it’s going to shed anyway. Keep the healthy growing tips — that’s where recovery starts.
Step 4: Plant correctly the first time
Follow our planting guide — right depth, crown exposed on rosettes, rhizomes unburied on epiphytes. Every uprooting and replanting restarts the acclimation clock, so get placement right on the first attempt. Decide where each plant goes before it goes in the water.
Step 5: Run a gentle first week
For the first 7 days after planting:
- Moderate light — run your normal photoperiod but consider dropping intensity 20–30% if your light is dimmable. Blast-level light on a melting plant grows algae on the dying leaves, not recovery.
- Stable CO2 — if you inject CO2, keep it consistent. Fluctuating CO2 during acclimation is a melt accelerator. If you’re low-tech, this doesn’t apply — see growing without CO2.
- Half-strength fertilizer — new plants with damaged leaves can’t use full dosing, and the excess feeds algae. Ramp to full strength over 2–3 weeks per our fertilizer schedule.
- No disturbance — don’t move, trim, or “check on” new plants for at least two weeks. Every touch resets root establishment. This is especially critical for crypts.
Step 6: Remove melt, keep the base
As emersed leaves melt, remove the mushy material promptly — decaying leaves release ammonia and grow fungus that can spread to healthy tissue. But never discard the plant while the crown, rhizome, or roots are firm and alive. A crypt that’s lost every leaf but has firm roots is a plant that’s about to recover, not a dead plant. Give it 3–4 weeks before judging.
Telling Normal Melt From Real Problems
Normal transition melt:
- Affects oldest/emersed leaves first, newest growth last
- New submersed leaves emerge even as old ones dissolve
- Roots and crown stay firm and white/green
- Timeline: 1–4 weeks, then obvious new growth
Concerning melt (see our full melting diagnosis guide):
- New growth also melts or emerges deformed
- Rhizome or crown turns mushy and brown — this is rot, not transition
- Entire plant dissolves within days with no new growth after 4+ weeks
- Melting spreads to established plants that weren’t recently moved
Buying Tips to Minimize Melt
- Buy submersed-grown when available — hobbyist-grown cuttings transition with almost no melt.
- Choose tissue culture for sensitive species — crypts and delicate stems establish far more reliably from sterile cups.
- Avoid plants already melting in the store tank — some melt is normal, but a plant that’s mostly mush at purchase has less energy for recovery.
- Transport carefully — keep plants damp and out of direct sun/heat. A plant that dries out or cooks in a hot car melts far worse than one transported properly.
The First-Month Timeline: What to Expect Week by Week
Knowing what’s normal when removes most acclimation anxiety. Here’s the typical timeline for a healthy plant adapting to a new tank:
Week 1: The quiet week
Almost nothing visible happens. The plant is growing roots you can’t see and assessing its new environment. Some species (vallisneria, stem plants) may start shedding their lowest leaves. This is normal. Resist the urge to “help” — no moving, no extra fertilizer, no light changes. The most common beginner mistake is intervening during a week when the correct action is nothing.
Week 2: Melt peaks
This is when emersed leaves give up in earnest. Crypts may drop everything; swords shed their broad aerial leaves; stem plants lose lower foliage. It looks catastrophic and it’s usually fine. Keep removing mushy material, keep conditions stable, and watch the crown and growing tips — if those are firm and green, recovery is already underway.
Week 3: The turn
New submersed-adapted leaves emerge — smaller, thinner, often a slightly different shade of green than the emersed foliage. Stem plant tips start growing visibly; crypts push tiny curled leaves from the crown; swords unfurl narrow ribbon leaves. This is the moment most beginners exhale for the first time.
Week 4+: Established
New growth outpaces melt, and the plant is functionally yours. You can resume full-strength fertilizer, normal trimming, and stop treating it as fragile. Some slow growers (anubias, bucephalandra) take 6–8 weeks to show obvious progress — that’s their normal speed, not a problem.
Acclimating Different Plant Formats
Tissue-culture cups
Sterile, pest-free, and already adapted to high-humidity (not emersed) growth — tissue cultures melt the least of any format. Rinse the agar gel off gently (leftover gel rots and feeds fungus), split the portion into small plantlets, and plant per our planting guide. They establish slowly for the first two weeks, then accelerate. No dip needed, minimal acclimation stress — this is the premium experience you’re paying for.
Potted plants
Remove the pot and strip away the rockwool completely — leftover rockwool traps debris and rots. Tease the root mass apart gently; if it’s a dense mat, splitting it into 2–3 smaller portions actually establishes faster than planting one big clump (more growing points, better water flow around roots). Potted plants are usually emersed-grown, so expect the standard 2–4 week melt cycle.
Bare-root / bunched stems
Typically sold as weighted bunches. Remove any bands, foam, or weights, strip the lower leaves, and plant stems individually or in small groups. Bunched stems from the store are often already transitioning — check for new submersed growth at the tips, which tells you the plant is mid-adaptation and will settle quickly.
Hobbyist cuttings
Already submersed-grown and the fastest to establish — often showing new growth within days. The main acclimation factor is water-parameter difference between the two tanks. Float to temperature-match, plant promptly, and they’ll usually take off with minimal melt. This is why experienced hobbyists prefer trading cuttings over buying potted plants.
Frequently Asked Questions
Should I use a “plant starter” or transplant fertilizer?
Products marketed for transplant shock are mostly B-vitamins and mild hormones. They don’t hurt, but there’s no strong evidence they help aquarium plants specifically. Stable conditions and patience outperform any bottle. Save the money for more plants.
My new plant melted completely — bare crown, no leaves. Is it dead?
Probably not, if the crown or rhizome is firm. Crypts and swords routinely lose 100% of their leaves and regrow from the base within a month. The test is firmness: firm and pale/green means alive; mushy and brown/black means rot. Give firm-but-leafless plants a full 4 weeks before declaring them dead.
Can I speed up acclimation with extra light or CO2?
No — and trying usually backfires. A melting plant can’t use extra light; the excess just grows algae on its dying leaves. Keep light moderate and CO2 stable (not boosted) during acclimation. Growth speed comes from the plant’s own adaptation timeline, which you can’t rush, only avoid delaying.
Should new plants go straight into my main display tank?
After quarantine/dipping, yes — there’s no benefit to a separate “growing-in” tank for most plants. They acclimate to your water fastest in the tank they’ll live in. The exception is very delicate species going into a tank with boisterous fish; give those a few weeks in a calm corner or breeder box first.
The Patience Rule
The single most important acclimation skill is restraint: plant it right, set gentle conditions, remove decay, and then leave it alone for a month. The hobbyists with the best plant growth aren’t doing something clever in week one — they’re simply not interfering in weeks two through four while the plants do what they’ve evolved to do. Melt looks like failure and feels like failure, but in most cases it’s the visible part of a plant successfully becoming yours.