Long Spine Porcupine Pufferfish (Diodon holocanthus)
Reef Compatible: Yes
Care Level: Intermediate
Disposition: Semi-aggressive
Minimum Tank Size: 75 gallons
Mature Size: 20 inches
Product Specifications
| Feature | Detail |
|---|---|
| Scientific Name | Diodon holocanthus |
| Size (Adult) | Up to 20 inches |
| Minimum Tank Size | 75 gallons |
| Compatibility | Reef-safe |
| Aggression Level | Semi-aggressive |
FAQ
Is the Long Spine Porcupine Pufferfish safe to keep with corals?
Yes, this species is reef compatible and does not typically damage corals when properly cared for.
What is the expected adult size of this pufferfish?
The mature size of the Long Spine Porcupine Pufferfish can reach up to 20 inches.
What tank size is required for this fish?
A minimum tank size of 75 gallons is recommended.




Ruth May –
The pufferfish is active and interesting to watch. It has adapted well to the 75-gallon tank with a mix of corals. The fish is semi-aggressive but doesn’t attack other tankmates. Needs a stable environment and regular water testing. Overall a great addition to a reef setup.
Piers Sharp –
We’ve had this fish for six months and it’s been healthy and calm most of the time. It does occasionally nudge smaller invertebrates, but not aggressively. The tank size is sufficient, and water parameters are stable with regular maintenance.
Lily Forsyth –
The fish is visually striking with its long spines. It’s not overly aggressive and coexists well with other reef species. We monitor water quality closely, and it shows no signs of stress. A good choice for intermediate reef keepers.