Rainbow / Fire Urchin (Venomous)

Quick Stats

Description

The Rainbow or Fire Urchin (Asthenosoma varium) is a stunning and vibrant addition to advanced marine aquariums, recognized by its intense red and blue coloration and long spines. Known for its venomous spines, this urchin requires careful handling and is best suited for experienced aquarists who can meet its unique care requirements. The Fire Urchin adds a striking display to the aquarium but should be housed with caution due to its semi-aggressive nature and potential threat to tank mates if disturbed.

As a herbivore, the Rainbow Urchin feeds primarily on algae, helping to control algae growth in the aquarium. It is generally reef-compatible but should be monitored closely as it may inadvertently harm delicate corals or other invertebrates while moving across the substrate. Ensure that the tank has ample algae growth, or supplement its diet with dried seaweed or algae-based foods to keep it healthy.

The Rainbow Urchin requires stable, high-quality water conditions and a spacious tank environment with plenty of live rock for grazing. Due to its venomous spines, avoid handling this urchin directly, and ensure it is placed in a tank with other hardy species that can tolerate its presence. Its unique beauty makes it a rewarding addition for dedicated aquarists who can provide the necessary care.

Approximate Purchase Size: 2″ to 3″