Pseudanthias Bimaculatus Male
Reef compatible: Yes
Care level: Expert-only
Disposition: Semi-aggressive
Minimum tank size: 100 gallons
Mature size: 5.5 inches
Specifications
| Feature | Value |
|---|---|
| Species | Pseudanthias bimaculatus |
| Gender | Male |
| Size (adult) | 3 to 4 inches |
| Compatibility | Reef-safe |
| Behavior | Semi-aggressive |
FAQ
Is this fish suitable for a beginner aquarium?
No, this species requires expert-level care and a large tank of at least 100 gallons. It is not recommended for beginners.
Can this fish coexist with other reef fish?
Yes, it is reef compatible, but it is semi-aggressive and should be kept with similarly sized, calm fish that are not easily stressed.
What is the expected mature size of this fish?
The mature size is approximately 5.5 inches, though it typically reaches 3 to 4 inches in size when kept in a home aquarium.

Emily Hardacre –
I’ve had this male bimaculatus for six months in a 120-gallon reef tank. It’s active and colorful, though it does show some aggression toward smaller fish. The tank needs to be large and well-maintained. Overall, a striking addition to a mature reef setup.
Brandon Ogden –
The fish looks beautiful and stays active in the tank. I’ve noticed it occasionally nips at smaller invertebrates, so I’ve added more hiding spots. It’s a good choice for experienced reef keepers with proper space.
Stephanie Rampling –
After researching several species, this one stood out for its vibrant color and compatibility with corals. It’s not easy to care for, but once settled, it becomes a centerpiece in the tank.