Orange Crush Acan Echinata CoralHow to Care for Orange Crush Acan Echinata Coral: (written by Dave Burr) We began farming the Orange Crush Acan Echinata coral in 2009. It's bright orange coloration helps it stand out in any reef aquarium. Orange Crush Acan Echinata Corals have sweeper tentacles that come out at night so leave 3" 4" inches between them and surrounding corals. Placement: Mount the Orange Crush Acan Echinata Coral using IC gel glue, or putty, on an exposed rock in the