Longspine Urchin Salifert 5 ml or half a

5 ml or half a capful for every 80 L (20 US gallons) once or twice per week

Acrylic can be scratched by abrasive cloths

position the wet side inside the sump or aquarium

Heavy-duty construction: Durable ABS plastics and laboratory-grade tubing support demanding continuous-use applications

Its tail becomes bright yellow

Longspine Urchin Salifert 5 ml or half aThis amazing creature grows exceptionally long spines for protection. It is typically black, although sometimes the spines are striped with white. It is most active at night, and has a voracious appetite for algae, including hair algae if there is not enough natural food available it may be fed dried algae sheets. It is very reef safe, and only bothers corals if it is starving. Its spines are easily broken and may easily puncture skin causing painful