Watermelon Tetra

WATERMELON TETRA

Hemigrammus coeruleus

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📍 BASIC INFO

Origin: South America – Middle and Lower Rio Negro Basin, Brazil

Adult Size: 2″–2.5″

Temperament: Peaceful / Active

Care Level: ⭐ Easy to Moderate

Tank Level: Middle / Top

🍽 DIET

Omnivore / Micro-Predator

Accepts: Quality flakes, micro pellets, frozen or live brine shrimp, daphnia, bloodworms, mosquito larvae, and other small foods

✔ COMPATIBILITY

An excellent community fish for peaceful tetras, rasboras, Corys, dwarf cichlids, and other non-aggressive species. Keep in a school of at least 6, preferably 8–10 or more, to encourage natural behavior and richer coloration.

💧 WATER PARAMETERS

pH: 6.0–7.2

Temperature: 76–82°F

Ammonia: 0 ppm

Nitrite: 0 ppm

Nitrate: <30 ppm

⭐ HIGHLIGHT

Also known as the Red Laser Tetra, this rare species features a glowing pink lateral stripe and warm reddish coloration. Mature males in breeding condition develop an intense ruby-red body with dark-edged fins.

📝 CARE NOTES

Keep in a mature, fully cycled aquarium with soft, stable water and gentle filtration. Provide plants, driftwood, leaf litter, shaded areas, and open swimming space. A dark substrate and subdued lighting help enhance its brilliant red coloration.

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Fish World Aquarium 🐟