Here’s all about Hygrophila sp. "Araguaia" — a unique, reddish-toned stem plant admired by aquascapers for its compact size, bushy growth, and distinct leaf shape.

🌿 Scientific Classification

• Scientific Name: Hygrophila sp. "Araguaia"

• Common Name: Hygrophila "Araguaia"

• Family: Acanthaceae

• Origin: Unclear, but named after the Araguaia River in Brazil

• Type: Stem plant

⚠️ Note: Despite the name, it is not confirmed to be from the Araguaia River, and its classification is still debated — some speculate it's a variety of Hygrophila lancea or closely related to Hygrophila pinnatifida.

🌱 Appearance

• Leaf Shape: Long, narrow, sword-shaped leaves with fine serrations

• Leaf Color: Brownish-green to reddish or burgundy under high light

• Growth Habit: Compact, creeping to upright; forms bushy groups

• Height: 5 – 20 cm (2 – 8 inches)

• Width/Spread: ~5 – 10 cm (2 – 4 inches)

💧 Ideal Tank Conditions

🌾 Growth & Propagation

• Growth Rate: Moderate to slow (faster with CO₂ and strong light)

• Propagation: Cuttings — trim the top and replant

• Growth Form: Often grows horizontally when well-trimmed, forming a red foreground/midground bush

🌟 Aquascaping Uses

• Foreground or midground plant

• Great for Dutch-style aquascapes

• Pairs well with green or lighter-colored plants for contrast

• Works beautifully as a bushy red accent in the front

🧠 Care Tips

• Needs strong light and CO₂ for best red coloration

• Regular trimming encourages side shoots and bushier shape

• Beneficial to dose micronutrients, especially iron to enhance red hues

• Slow to adapt after planting or moving — give time

⚠️ Common Issues

• Without enough light/CO₂, growth becomes leggy and green

• May melt if suddenly transitioned to submerged from emersed form

• Sensitive to major fluctuations in water parameters

🐠 Compatibility

• Safe with all peaceful fish and shrimp

• Avoid housing with plant-eating fish like goldfish or large cichlids

📌 Summary