Egeria Densa Major

🌿 Species Profile

• Common Name: Brazilian Waterweed / Giant Anacharis (Major form)
• Scientific Name: Egeria densa ‘Major’
• Plant Type: Stem plant
• Origin: South America
• Growth Rate: Very fast
• Difficulty: Easy
• Placement: Background

🌱 Appearance

• Thick green stems with dense leaf whorls
• Leaves are:
  • Bright to deep green
  • Slightly broader in “Major” form than regular E. densa
• Forms dense underwater bushes quickly
• Size:
  • Height: 40–120 cm (16–48 in)
  • Width: spreads rapidly via branching stems

🧪 Tank Requirements

• Temperature: 15–28°C (very tolerant)
• pH: 6.0–7.5
• Hardness: Very adaptable
• Lighting: Low to medium (high light = explosive growth)
• CO₂: Not required

🌿 Substrate & Nutrition

• Can be planted or left floating
• Absorbs nutrients directly from water column
• Benefits from:
  • Liquid fertilizers
  • High nitrate availability
• No special substrate needed

✂️ Care Tips

• Requires frequent trimming due to fast growth
• Remove lower shaded leaves
• Replant cut tops easily
• Can overgrow small tanks quickly

🌱 Propagation

• Extremely easy:
  • Cut stem sections → replant
  • New roots form quickly from nodes

🐟 Aquarium Use

Best for:

• Background mass planting
• New tank cycling (excellent nutrient absorber)
• Oxygenation and algae control

Compatible with:

• Most community fish
• Livebearers
• Shrimp
• Coldwater fish (very tolerant)