Domino Damselfish

Domino Damselfish

Dascyllus trimaculatus

Also known as: Three Spot Damsel

🧂 Saltwater 🔥 Aggressive 🟢 Easy 🍽️ Omnivore Reef Safe

Black body with three white spots as a juvenile. Spots fade with age. One of the most aggressive damsels available.

Tank Size

30 gal
minimum (55+ preferred)

Temperature

74–82°F
23–28°C

pH Range

8–8.4
water acidity

Max Size

5"
12.7 cm

Lifespan

5–10 years
typical in captivity

Swim Level

Middle
preferred zone

Care Notes

Extremely aggressive and territorial as an adult. Very difficult to remove once established. Not recommended for community tanks.

Feeding

Marine flakes, pellets, and frozen foods. Will eat anything.

Compatible Tank Mates

None identified.

Use Caution With

Maroon Clownfish 6" Blue Devil Damselfish 3" Powder Blue Tang 9" Achilles Tang 10" Purple Tang 10" Three Stripe Damselfish 3" Four Stripe Damselfish 3" Jewel Damselfish 6" Clown Tang 15" Huma Huma Triggerfish 10"

Incompatible With

Ocellaris Clownfish 3" True Percula Clownfish 3" Blue Green Chromis 3" Yellowtail Damselfish 2.5" Blue Tang 12" Yellow Tang 8" Kole Tang 7" Clarkii Clownfish 5" Tomato Clownfish 5" Scopas Tang 8" Naso Tang 18" Convict Tang 8"

Check Compatibility

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