More info
Datasheet
| Minimum Tank Size | 75 litres / 19.81 US gallons |
| Maximum Size | 10.2cm / 4.02inches |
| Reef Compatible | With Caution |
| Temperament | Semi-aggressive |
| Care Description | Easy |
| Specific Gravity | 1.023-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Purple Short Spine Pincushion Urchin, scientifically known as Pseudoboletia sp., is a striking addition to aquariums with its black coloration and unique appearance. With oval or round bodies covered in short, sharp spines, this herbivorous creature scavenges for food and algae amongst rocks and substrate, adding both beauty and functionality to home aquariums.
Aquarium Suitability
This species of Pincushion Urchin is generally easy to care for, making it suitable for beginner aquarists. It is recommended to place them in larger aquariums of at least 75 liters, providing ample space for multiple individuals if desired, along with adequate algae and shelter.
Demands
The Purple Short Spine Pincushion Urchin has a semi-aggressive temperament and may not fare well in high copper-based medication environments or with elevated nitrate levels. Monitoring water conditions is crucial, as poor quality can lead to spines loss. Additionally, supplementing their herbivorous diet with dried seaweed is essential if algae levels are low.
Reef Suitability
Reef compatibility with this urchin should be approached with caution due to its foraging nature. While it helps in algae control, it may accidentally knock over corals or disturb the arrangement in a reef tank.
Aquarium Setup
When setting up the aquarium for the Purple Short Spine Pincushion Urchin, ensure water conditions are within the ranges of pH 8.1-8.4, specific gravity of 1.023-1.025, and a carbonate hardness (KH) of 8-12. Providing hiding spots among rocks, crevices, or plants in sandy substrate allows for natural behavior expression while also preventing stress.
Behaviour
During the day, these urchins prefer staying hidden among rocks or plants, emerging at night to graze on algae. They typically roam alone, but multiple individuals can coexist if the tank is spacious enough to support their dietary and spatial needs.
Feeding and Diet
As herbivores, the Purple Short Spine Pincushion Urchins primarily feed on algae present in their environment. Supplementation with dried seaweed is necessary in cases of low algae levels to ensure proper nutrition.
Habitat and Distribution
Native to the ocean's shallow waters, these urchins are distributed in various regions, contributing to their adaptability in aquarium settings. Their natural inclination to scavenge for algae and detritus makes them valuable members of a cleanup crew in marine tanks.