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Plant care

Echinodorus 'Ozelot' (Ozelot sword) care

Echinodorus 'Ozelot'

Also called Ozelot sword, spotted Amazon sword.

USDA Tropical aquarium plant — not frost hardyMildly toxic to petsIndoor Leaves 25-45 cm tall

Watering rhythm

Medium indirect light (a couple of metres from a window)

Permanently submerged; 25-30% weekly water change

Light

Medium indirect light (a couple of metres from a window)

Soil

Deep, nutrient-rich aquarium substrate with root tabs

Humidity

100% (submerged)

Temp

22-28°C

Pet safety

Mildly toxic to pets

Mature size

Leaves 25-45 cm tall

Care at a glance

Light

Picture the indirect light an east-facing window gives mid-morning — that's the brightness echinodorus 'ozelot' grows fastest in. Moderate to bright aquarium light; stronger light deepens the red-brown spotting and colour. Grows without CO2, though injection improves vigour and leaf size. You'll know it's right when new leaves come out the same size and colour as the established ones. Smaller, paler new leaves = move closer to the window.

Watering

Aim for permanently submerged; 25-30% weekly water change for echinodorus 'ozelot', but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Fully aquatic — crown and leaves stay underwater. Tolerant of soft to moderately hard water, pH around 6.5-7.5; values clean, stable conditions for best colour.

Soil and pot

Echinodorus 'Ozelot' grows best in deep, nutrient-rich aquarium substrate with root tabs. A heavy root feeder. Provide a deep aqua-soil or gravel bed with iron-rich root tabs to fuel the large rosette and bring out leaf colour. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Echinodorus 'Ozelot' sits happiest at around 100% (submerged) humidity and 22-28°C (72-82°F). Grown underwater so humidity does not apply; emersed propagation requires a humid, covered setup. If you keep the room above 22 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed echinodorus 'ozelot' sparingly. Iron-rich root tabs every 2-3 months plus a weekly liquid fertiliser; iron and trace elements sustain both growth and the characteristic spotting. Pale new leaves signal iron shortage. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on echinodorus 'ozelot' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Faded spotting / pale leavesLow light and iron deficiency wash out the markings. Increase lighting moderately and dose iron-rich root tabs and liquid iron.
  • Holey older leavesPotassium shortage or natural senescence. Trim old leaves at the base and supplement potassium.
  • Transition meltEmersed nursery leaves die back when submerged. Keep the crown; the submerged spotted form regrows within weeks.
  • Small, stunted rosetteInadequate root nutrition. Use a deep, rich substrate with root tabs — thin gravel starves this heavy feeder.

Propagation

Propagate from the plantlets that develop on its flower/runner stalks; detach each once rooted with several leaves and plant into the substrate — they retain the spotting. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Echinodorus 'Ozelot' is mildly toxic to pets. Echinodorus is not individually listed by the ASPCA, so toxicity is unconfirmed; treat with caution and verify with a vet. As an Amazon sword hybrid it may contain saponins reported in the genus, so do not label it pet-safe without ASPCA grounding — keep clippings away from pets. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Echinodorus 'Ozelot' care — frequently asked questions

What is the common name for Echinodorus 'Ozelot'?

Echinodorus 'Ozelot' is most commonly called Echinodorus 'Ozelot', but it is also known as Ozelot sword, spotted Amazon sword. The names refer to the same species, so care instructions for Echinodorus 'Ozelot' apply identically to anything sold as Ozelot sword.

How much light does echinodorus 'ozelot' need?

Echinodorus 'Ozelot' grows best in medium indirect light (a couple of metres from a window). Moderate to bright aquarium light; stronger light deepens the red-brown spotting and colour. Grows without CO2, though injection improves vigour and leaf size.

How often should I water echinodorus 'ozelot'?

Water echinodorus 'ozelot' permanently submerged; 25-30% weekly water change. Fully aquatic — crown and leaves stay underwater. Tolerant of soft to moderately hard water, pH around 6.5-7.5; values clean, stable conditions for best colour. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is echinodorus 'ozelot' toxic to cats and dogs?

Echinodorus 'Ozelot' is mildly toxic to pets. Echinodorus is not individually listed by the ASPCA, so toxicity is unconfirmed; treat with caution and verify with a vet. As an Amazon sword hybrid it may contain saponins reported in the genus, so do not label it pet-safe without ASPCA grounding — keep clippings away from pets.

What USDA hardiness zone does echinodorus 'ozelot' grow in?

Echinodorus 'Ozelot' is rated for USDA zone Tropical aquarium plant — not frost hardy; keep indoors above 18°C. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Echinodorus 'Ozelot' deep-dive guides

Every aspect of echinodorus 'ozelot' care, each with its own calibrated guide:

Featured in these plant shortlists

Echinodorus 'Ozelot' qualifies for 2 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Echinodorus 'Ozelot' is also commonly called Ozelot sword or spotted Amazon sword.