Species Profile
Three-Stripe Damselfish
Dascyllus aruanus
Also known as: Humbug Damsel, Three Stripe Dascyllus
Damselfishaggressive
Adult size
4″
Minimum tank
30 gal
Temperature
72–82°F
pH
8.1–8.4
Schooling
Solitary OK
Water level
mid
Diet
Marine flake, pellets, frozen mysis
Notes
Striking black-and-white bars but personality of a wasp. Sold cheap to beginners as 'reef-safe starter fish' then proceeds to terrorise everything added later. Best in a species-only or large rough-tank-mates setup.
Compatible Tankmates
Best tank mates for Three-Stripe Damselfish
Every species below passes the compatibility engine when paired with Three-Stripe Damselfishin a suitably sized tank. Verdicts come from the same rules the builder uses — click a card to see that species' own care profile and its tank mates in turn.
Yellow Tang
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Maroon Clownfish
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Tomato Clownfish
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Yellowtail Damselfish
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Blue Hippo Tang
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Powder Blue Tang
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Sailfin Tang
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Yellow Watchman Goby
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Diamond Watchman Goby
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Bicolor Blenny
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Lawnmower Blenny
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Sixline Wrasse
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Photo: Elapied / Wikimedia Commons · Source · CC-BY-SA-2.0-FR