Five Headed Granular Penis Starfish (Choriaster granulatus)
Care Level: Intermediate
Disposition: Peaceful
Min. Tank Size: 75 gallons
Mature Size: 12 inches
A striking showpiece that commands attention in any aquarium. This premium Five Headed Granular Penis Starfish displays exceptional color saturation and distinctive branching arms with remarkable granular texture detail. At a rare XXL/SHOW size of 7 inches, this specimen is a mature, visually impressive centerpiece that demonstrates years of development.
Choriaster granulatus thrives in established systems with moderate flow and stable conditions. Its peaceful disposition makes it an ideal addition to reef and mixed communities.
| Specification | Detail |
|---|---|
| Species | Choriaster granulatus |
| Size (approx) | 7 inches (XXL/SHOW) |
| Color | High saturation, natural pigmentation |
| Arm Structure | Branching with granular texture |
| Temperament | Peaceful |
FAQ
What is the mature size of this starfish?
The mature size of this starfish is 12 inches.
Is this starfish suitable for a reef tank?
Yes, this starfish is peaceful and suitable for reef and mixed community tanks.
What tank size is required for this starfish?
A minimum tank size of 75 gallons is recommended.

Dylan Hodges –
This starfish is a stunning addition to my 100-gallon reef tank. The color and texture are vivid and detailed. It has been thriving for over six months with no signs of stress. The branching arms are clearly visible and very attractive.
Ava Butler –
I was impressed by the size and quality. At 7 inches, it’s one of the largest specimens I’ve seen. It’s peaceful and doesn’t interfere with other tank inhabitants. The granular texture is very well preserved.
Stephanie Morgan –
It looks beautiful in the tank. I’ve had it for three months now and it’s doing well. The water parameters are stable and it seems to adapt well to the flow. A bit of maintenance is needed for the substrate, but overall it’s a great choice.