Fishician®
Aquarium species profile

Elephant Nose Fish

Gnathonemus petersii · West and Central Africa

Minimum tank55 gal
Adult size9"
Care levelHard
TemperamentSemi-Aggressive
Temperature73–82°F
pH range6.0–7.5

Diet

Carnivore – frozen bloodworms, blackworms, tubifex; finicky and outcompeted easily

Compatible tank mates

Peaceful mid/upper-water fish; Congo Tetras, Angelfish, peaceful Gouramis

Tank mates to avoid

Other Elephant Nose (territorial), aggressive fish, fin-nippers

Care notes

Uses weak electric fields to navigate and find food. Highly intelligent. Sensitive to water quality and copper. Soft sand substrate; subdued lighting.

Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.

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