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Watermelon Tetra: A Comprehensive Guide (Hemigrammus coeruleus)
by Bob Steenfott April 08, 2026

The Watermelon Tetra (Hemigrammus coeruleus) is a rare blackwater species known for its unique green-to-red coloration and peaceful schooling behavior. While more expensive than common tetras, it rewards aquarists with stunning visuals in well-designed aquariums.

Posted in blackwater fish, community aquarium fish, community fish, freshwater community fish, hemigrammus coeruleus, peaceful community fish, rare tetra species, tropical community fish, watermelon tetra

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