Alternanthera reineckii 'Mini' guide

Common name: Alternanthera reineckii 'Mini'
Scientific name: Alternanthera reineckii 'Mini'
Category: Aquarium plant
Group: Red stem plants
Environment: Freshwater planted aquarium
Origin: Cultivated compact form of the South American species Alternanthera reineckii
Care level: Intermediate
Adult size: Usually 5–10+ cm tall when maintained as a compact foreground plant
Expected lifespan: Cultivated stem stands can be maintained long-term by repeated cuttings; the wild parent species is reported as annual
Minimum housing: No fixed minimum volume; allow a planted footprint of at least 10–20 cm and room for repeated trimming
Temperature: Unknown — maintain a stable tropical planted-aquarium temperature
pH: Unknown — no dependable cultivar-specific numeric range found
Hardness / minerals: Unknown — no dependable cultivar-specific GH or KH range found
Salinity: Freshwater; not a brackish plant
Lighting: Medium to high; stronger light supports compact growth and red colour
Placement / zone: Foreground to low midground
Filtration: Use circulation and mechanical filtration that keep fine debris from settling through the stems without uprooting or flattening them. Guard intakes after trimming and keep the biological filter stable when fertiliser or carbon delivery changes.
Aeration: Maintain normal whole-aquarium gas exchange. In injected-carbon systems, preserve safe night-time oxygen and prevent carbon accumulation; stronger aeration is required if livestock show respiratory stress.
Maintenance: Prune and replant healthy tops, remove shaded or decaying lower stems, vacuum loose debris, inspect for algae and hitchhikers, and change light, carbon or fertiliser only in measured steps.

Identity and search names

Use this profile only for the compact Mini cultivar. Standard Alternanthera reineckii grows taller and should use its own profile.

Search names: AR Mini, Alternanthera Mini, Mini red alternanthera

Environment and housing

Plant in a nutrient-accessible substrate with open light above the crown. Leave space around groups so lower leaves are not shaded.

Social structure: Cultivated stem group; no animal social structure applies. Dense stands must be thinned so lower stems retain light and circulation.

Feeding and nutrition

Feeding ecology: Water-column and substrate nutrients; carbon availability must match light intensity

Feeding routine: Provide balanced macro- and micronutrients according to measured growth. Avoid colour-chasing with excessive iron or abrupt dosing.

Breeding, reproduction or spread

Propagate by trimming healthy stems and replanting the tops; remove weak lower sections.

Detailed care and app-ready planning

Identity scope: Use this profile only for the compact Mini cultivar. Standard Alternanthera reineckii grows taller and should use its own profile.
Adult size and space: Usually maintained at 5–10+ cm by frequent trimming; spread depends on how many cuttings are planted.
Social structure: Cultivated stem group; no animal social structure applies. Dense stands must be thinned so lower stems retain light and circulation.
Swimming zone or placement: Rooted foreground to midground plant; no swimming zone applies.
Feeding ecology: Photosynthetic cultivar using light, dissolved carbon and water-column or substrate nutrients.
Feeding plan: Provide balanced macro- and micronutrients according to measured growth. Avoid colour-chasing with excessive iron or abrupt dosing.
Water stability: Keep temperature, carbon delivery and nutrient dosing stable. Sudden carbon changes are more damaging than a non-ideal but stable pH.
Habitat structure: Nutrient-accessible substrate, open overhead light, stable carbon delivery and enough space to trim and replant individual stems.
Compatibility plan: Avoid digging cichlids, large herbivores and livestock that repeatedly uproot stems.
Breeding or reproduction plan: Trim healthy tops, replant them, and thin old shaded growth so the stand does not smother itself.
Quarantine: Inspect and rinse new plants; isolate where practical to detect snails, eggs, algae, hydra or chemical residues.
Welfare checks: Check compactness, leaf colour, lower-leaf retention, stem strength, algae pressure and rooting.
Biosecurity and release: Never release plants or trimmings outdoors or into drains or waterways. Confirm current Australian import and state weed rules before obtaining plants.
Main risk: High light without stable carbon and nutrients, causing algae and plant decline.
Adult projected load: Projected load is plant biomass, shading, nutrient uptake, trimming debris and night-time respiration. Dense mature stands need circulation, pruning access and stable carbon and nutrient supply, not just the space occupied by new cuttings.
Filtration: Use circulation and mechanical filtration that keep fine debris from settling through the stems without uprooting or flattening them. Guard intakes after trimming and keep the biological filter stable when fertiliser or carbon delivery changes.
Aeration: Maintain normal whole-aquarium gas exchange. In injected-carbon systems, preserve safe night-time oxygen and prevent carbon accumulation; stronger aeration is required if livestock show respiratory stress.
Maintenance: Prune and replant healthy tops, remove shaded or decaying lower stems, vacuum loose debris, inspect for algae and hitchhikers, and change light, carbon or fertiliser only in measured steps.
Overridable warnings: Non-overridable: do not release viable stems or trimmings, and do not increase light or carbon faster than the system can support safely. A knowledgeable user may use another fertiliser, substrate or pruning method only when stable growth and livestock safety are demonstrated.
Identity: A named aquarium cultivar, not a separate botanical species. Search names include AR Mini and Alternanthera Mini.
Environment: Plant in a nutrient-accessible substrate with open light above the crown. Leave space around groups so lower leaves are not shaded.
Feeding: Provide balanced nitrogen, phosphorus, potassium and trace nutrients. Injected carbon dioxide is strongly beneficial under medium-to-high light.
Breeding: Propagate by trimming healthy stems and replanting the tops; remove weak lower sections.
Adult size and space: Usually maintained at 5–10+ cm by frequent trimming; spread depends on how many cuttings are planted.
Growth Rate: Medium under adequate light and carbon; slower than standard Alternanthera reineckii.
Lighting Plan: Begin at moderate intensity and increase only after growth is stable. Tropica classifies it as medium light and reports stronger light improves compactness and colour.
Carbon Plan: Injected CO2 is recommended for dense compact growth; Tropica describes medium CO2 demand around 6–14 mg/L. Avoid large daily fluctuations.
Nutrient Plan: Dose to measured plant demand rather than colour-chasing. Pale new growth, pinholes or lower-leaf loss require diagnosis before increasing fertiliser.
Substrate Plan: Plant individual cuttings with space between stems in a nutrient-accessible substrate. Do not bury leaves or crush the crown.
Propagation plan: Trim healthy tops, replant them, and thin old shaded growth so the stand does not smother itself.
Biosecurity and release: Never release plants or trimmings outdoors or into drains or waterways. Confirm current Australian import and state weed rules before obtaining plants.

Compatibility, welfare and risk

Compatibility: Suitable with peaceful planted-aquarium livestock that do not uproot or eat soft leaves

Welfare: Check compactness, leaf colour, lower-leaf retention, stem strength, algae pressure and rooting.

Main warning: Weak light, unstable carbon or poor nutrient balance produces tall, sparse growth and leaf loss.

Biosecurity and release

Never release plants or trimmings outdoors or into drains or waterways. Confirm current Australian import and state weed rules before obtaining plants.

Alternanthera reineckii 'Mini'