Porcupine Puffer tank mates
Diodon holocanthus
5 rated pairings from the Porcupine Puffer care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Porcupine Puffer needs at least 100 gallons on its own; every companion adds to that.
Good matches
3 · Compatible with normal care — watch space and numbers.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Similar saltwater requirements; fast enough to avoid predation; occupies different tank zones
Lawnmower Blenny
Salarias fasciatus
30 gal min · 4.5" adult · Peaceful
Peaceful herbivore occupying different ecological niche; adequate speed to avoid aggression
Yellow Watchman Goby
Cryptocentrus cinctus
30 gal min · 3.5" adult · Peaceful
Bottom-dwelling, non-aggressive; minimal competition for food or space
Use caution
2 · Works in the right setup; read the note before combining.Also recommended alongside Porcupine Puffer
Species whose own guides list Porcupine Puffer as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.