Three-stripe Damsel tank mates
Dascyllus aruanus
6 rated pairings from the Three-stripe Damsel care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Three-stripe Damsel needs at least 30 gallons on its own; every companion adds to that.
Good matches
4 · Compatible with normal care — watch space and numbers.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Similar size and hardiness; may experience minor aggression but generally coexist in larger tanks
Pink Skunk Clownfish
Amphiprion perideraion
30 gal min · 4" adult · Semi-aggressive
Comparable temperament and water requirements; can hold their own against damsel aggression
Pistol Shrimp
Alpheus randalli
20 gal min · 2" adult · Semi-aggressive
Tough and can defend itself; occupies different tank zones, reducing conflict

Nerite Snail
Neritina natalensis
5 gal min · 1" adult · Peaceful
Hard shell provides protection; damsels generally ignore them while snails help with algae control
Use caution
2 · Works in the right setup; read the note before combining.Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.