Squareback Anthias (Male) – Size: L 4″ to 5″
Pseudanthias pleurotaenia
Reef Compatible: Yes
Care Level: Intermediate
Disposition: Semi-aggressive
Min. Tank Size: 100 gallons
Mature Size: 8 inches
Product Specifications
| Feature | Value |
|---|---|
| Species | Pseudanthias pleurotaenia |
| Sex | Male |
| Size (Adult) | 4″ to 5″ (length) |
| Mature Size | 8 inches |
| Reef Compatibility | Yes |
| Difficulty Level | Intermediate |
| Behavior | Semi-aggressive |
| Minimum Tank Size | 100 gallons |
FAQ
Is the Squareback Anthias suitable for a reef tank?
Yes, this species is reef compatible and can coexist with corals and other reef-safe fish.
What is the expected mature size of this fish?
The mature size of the Squareback Anthias is approximately 8 inches.
What is the recommended tank size for keeping this fish?
A minimum tank size of 100 gallons is required for proper growth and stability.


Austin Buckland –
The Squareback Anthias is active and colorful. It has adapted well in my 120-gallon reef tank. I noticed it doesn’t harm corals and stays within the group. Good for intermediate reef keepers.
Michelle Forsyth –
This male anthias is vibrant and adds movement to the tank. It’s semi-aggressive but not overly so. Needs a large tank, which I have. Feeding is straightforward.
Abigail King –
Great addition to a reef setup. The fish is healthy and stays calm with other non-aggressive species. I appreciate the clear species information provided.