Black Saddleback Clownfish (Amphiprion polymnus)
Reef compatible: Yes
Care level: Intermediate
Disposition: Semi-aggressive
Minimum tank size: 30 gallons
Mature size: 5 inches
Product Details
| Feature | Value |
|---|---|
| Species | Amphiprion polymnus |
| Size (Adult) | 5 inches |
| Size (Available) | 1.5″ and below |
| Compatibility | Reef-safe |
| Behavior | Semi-aggressive |
| Minimum Tank Size | 30 gallons |
FAQ
Is this clownfish suitable for a reef tank?
Yes, the Black Saddleback Clownfish is reef compatible and can coexist with coral and other reef-safe species.
What is the expected mature size of this fish?
The mature size of this clownfish is up to 5 inches.
Is this fish aggressive toward other fish?
It has a semi-aggressive disposition and may display territorial behavior, especially during feeding or breeding.


Victor Lambert –
Received the Black Saddleback Clownfish in good condition. It’s active and colorful, and has adapted well to the 30-gallon tank. The fish seems to be compatible with other reef species. A great addition to a balanced reef setup.
Carolyn Ross –
The fish arrived healthy and has been active since setup. It’s not overly aggressive, but does defend its space. I appreciate the clear labeling and accurate size description. Works well in a mid-sized reef tank.
James Blake –
This clownfish is vibrant and easy to care for. It’s a good fit for intermediate reef keepers. The size is smaller than expected, which makes it ideal for smaller tanks. Very satisfied with the purchase.