Longspine Urchin Salifert Acrylic can be scratched by

Acrylic can be scratched by abrasive cloths

and debris from entering intake or drain lines

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

This one-part acetoxy cure silicone is designed to create a durable

position the wet side inside the sump or aquarium

Longspine Urchin Salifert Acrylic can be scratched byThis 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