Caribbean Horseshoe Crab (Limulus polyphemus)
This ancient and fascinating species features a hard, horseshoe-shaped shell and long tail, adding a prehistoric charm to your tank. Native to Caribbean sandy bottoms and seagrass beds, Horseshoe Crabs are peaceful, bottom-dwelling scavengers that sift through the substrate for detritus and meaty foods like shrimp and chopped seafood. Ideal for large fish-only or FOWLR aquariums, they are hardy and captivating additions.
Quick Facts
| Category | Detail |
|---|---|
| Care Level | Moderate |
| Temperament | Peaceful |
| Maximum Size | ~24 inches (including tail) |
| Minimum Tank Size | 150 gallons |
| Diet | Detritus, shrimp, chopped seafood |
FAQ
What is the typical diet of a Caribbean Horseshoe Crab?
Horseshoe Crabs are bottom-dwelling scavengers that feed on detritus, shrimp, and chopped seafood.
How big can a Caribbean Horseshoe Crab grow?
The maximum size is approximately 24 inches, including the tail.
Is the Horseshoe Crab suitable for a small aquarium?
No, a minimum tank size of 150 gallons is required due to its size and habitat needs.
Blake Simpson –
The horseshoe crab adds a unique and striking presence to my 150-gallon tank. It’s very peaceful and spends most of its time sifting through the sand. I feed it shrimp and vegetable matter regularly. It’s a fascinating addition that draws attention without being aggressive.
Richard Walsh –
I’ve had this crab for six months now and it’s doing well. It’s not very active but it’s always in the substrate, which is natural. The tank setup is simple, but it does require a large volume. I appreciate the prehistoric look it brings to the tank.
Tim Tucker –
This crab is a real eye-catcher. It’s calm, doesn’t stress other fish, and seems to enjoy its environment. I feed it small pieces of shrimp and fish scraps. It’s a great choice for someone looking for a unique, hardy species.