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Brazilian Waterweed

Egeria densa · family Hydrocharitaceae

Brazilian Waterweed (Egeria densa) — aquarium plant
Wikipedia / Various contributors / CC BY-SA
Light
Medium
CO₂
Not required
Temperature
16–26 °C
pH
6.5–8
Hardness
5–20 °dGH
Growth rate
Fast
Height
up to 80 cm
Placement
Background
Root feeder
No

Pros and cons

  • Grows without CO₂ and in cold water
  • Suitable for goldfish tanks
  • Heavy nitrate consumer
  • Cheap and widely available
  • Invasive weed in several countries
  • Can release allelopathic compounds — suppresses other plants
  • Can be eaten by goldfish and large cichlids

Description

The classic elodea. One of the oldest aquarium species. Cold-water friendly — works in unheated goldfish tanks.

Care

Plant stems. No CO₂ or bright light needed. Prune as needed.

FAQ

Подходит для холодного аквариума?
Да, переносит до 4 °C. Один из немногих видов для холодноводных аквариумов с золотыми рыбками.
Goldie editorial team — collective profile photo
AuthorGoldie Editorial

Goldie editorial team

Practising aquarists with a combined 30+ years of experience · Biologists and editors, fact-checking against FishBase and Seriously Fish · Every piece is reviewed by a qualified ichthyologist before publication

Goldie Science Board — collective scientific review panel
Reviewed byGoldie Science Board

Scientific board — ichthyologists and veterinarians

Ichthyologists and veterinarians with university degrees · Reference FishBase, Seriously Fish and peer-reviewed literature · Sign every reviewed article with their credentials shown

Sources

  1. Wikipedia: Egeria densa · Wikipedia · 2026-05-22