Anacharis (Egeria densa) Care Guide

One of the most popular and easiest aquarium plants worldwide. Dense whorls of bright green leaves along long stems provide excellent cover for fish and fry.

Overview

Egeria densa is an aquatic plant in the family Hydrocharitaceae. One of the most popular and easiest aquarium plants worldwide. Dense whorls of bright green leaves along long stems provide excellent cover for fish and fry. Tolerates a very wide range of conditions including cold water, making it virtually indestructible for beginners.

Taxonomy

Family: Hydrocharitaceae
Genus: Egeria
Scientific name: Egeria densa
Other names: Brazilian Waterweed, Egeria densa, Elodea densa

Habitat

Native to warm temperate South America (southeastern Brazil, Argentina, Chile, Uruguay). Most plants in cultivation are male clones reproduced vegetatively. Invasive in many regions including parts of North America, Europe, Asia and Australia.

Growth requirements

Light: low (≈30-50 PAR at substrate)
CO2: optional (CO2 improves growth and coloration)
Temperature: 10-28 °C
pH: 5.5-8.5
GH: 2-20 °dGH
Substrate: any (rootless or floating)
Nutrient demand: low
Growth rate: fast
Difficulty: beginner

Placement

Recommended placement: background
Maximum height: 60 cm
Trim every: 7 days

Propagation

In cultivation the plant is propagated by stem cuttings (replant the upper portion after trimming).