Catalog / plants / Scarlet temple
plant · Amaranthaceae
Scarlet temple
Alternanthera reineckii
Wild range: tropical regions (Americas)

At a glance: Scarlet temple care
Compiled reference information. Review the care notes and original sources below.
What temperature is listed for Scarlet temple?
The compiled profile lists 20.0–28.0 °C for Scarlet temple (Alternanthera reineckii). Check the original sources below for context and differing recommendations.
What tank size is listed for Scarlet temple?
The profile lists a minimum tank volume of 20.0 US gallons (80.0 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.
What pH is listed for Scarlet temple?
The compiled profile lists a pH of 6.0–7.5. Review the cited care sources alongside the other water parameters in this profile.
Natural habitat
Alternanthera reineckii is commonly found in slow-moving waters, often in forested areas, thriving in nutrient-rich substrates and receiving moderate levels of light.
Where they are found
Native to South America, particularly Brazil, where it grows in shallow, nutrient-rich water bodies.
Aquarium care
When cultivating Scarlet Temple in an aquarium, ensure medium lighting and provide CO2 supplementation for improved growth, though it can survive without it. Regular pruning can help maintain its shape and promote healthier growth.
Feeding
While not particularly demanding in terms of nutrients, providing a balanced fertilizer will enhance its growth and coloration.
Compatibility
This plant is considered community-safe and works well alongside a vast array of other freshwater species without being aggressive.
Breeding
Scarlet Temple propagates through cuttings; simply trim a healthy stem and replant it in the substrate. It can also be divided in clusters to make new plants.
Sources
Compiled from multiple independent care sheets — not copied from a single site.