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.
Photo: Elapied / Wikimedia Commons · Source · CC-BY-SA-2.0-FR