How related are they?
Same genus, Dascyllus (humbugs and dominos): very close cousins
They split at the species level: the Domino Damselfish belongs to Dascyllus trimaculatus (Domino Damselfish), the Two Stripe Damselfish to Dascyllus reticulatus (Two Stripe Damselfish).
Find the Domino Damselfish on the tree · Find the Two Stripe Damselfish on the tree
Family lines, side by side
Highlighted rows are groups both animals belong to. The marked row is where their lines go separate ways.
| Rank | Domino Damselfish | Two Stripe Damselfish |
|---|---|---|
| Kingdom | Animalia Animals | |
| Phylum | Chordata Chordates | |
| Subphylum | Vertebrata Vertebrates | |
| Infraphylum | Gnathostomata jawed vertebrates | |
| Parvphylum | Osteichthyes bony fishes | |
| Gigaclass | Actinopterygii ray-finned fishes | |
| Superclass | Actinopteri | |
| Class | Teleostei Teleost fishes | |
| Order | Ovalentaria (unplaced) Unplaced ovalentarian fishes | |
| Family | Pomacentridae Damselfishes and clownfishes | |
| Genus | Dascyllus humbugs and dominos | |
| Species split | Dascyllus trimaculatus Domino Damselfish | Dascyllus reticulatus Two Stripe Damselfish |
Care, side by side
| Fact | Domino Damselfish | Two Stripe Damselfish |
|---|---|---|
| Type | Fish · Damselfish | Fish · Damselfish |
| Care level | Easy | Easy |
| Reef safe | Yes | Yes |
| Temperament | Aggressive | Aggressive |
| Diet | Omnivore | Omnivore |
| Favorite foods | Frozen mysis shrimp, Frozen brine shrimp, Marine flakes and pellets | Frozen mysis shrimp, Small marine pellets, Flake foods |
| Max size | 5.5 in (14 cm) | 3.5 in (9 cm) |
| Minimum tank | 75 gal | 30 gal |
| Temperature | 72–78 °F | 72–78 °F |
| Salinity (SG) | 1.020–1.025 | 1.020–1.025 |
| pH | 8.1–8.4 | 8.1–8.4 |
| Lifespan | No published lifespan figure was found in the sources checked. FishBase rates the species as highly resilient, with a minimum population doubling time under 15 months. | No published lifespan figure was found in the sources checked. |
| Breeding | Hard | Hard |
| Conservation (IUCN) | Least Concern | Least Concern |