Nov 1, 2025 #1 Quoiasdad Community Member View Badges R2R App User My Aquarium Showcase Joined Aug 5, 2019 Messages 70 Reaction score 46 Location Arlington va Rating - 0% 0 0 0 Just purchased a pencil urchins wondering if it’s coral safe
Nov 1, 2025 #2 BryanM 7500 Club Member View Badges R2R App User ThreadOfTheDay Hospitality Award SF Bay Reefer My Tank Thread My Aquarium Showcase Joined Jun 27, 2024 Messages 8,553 Reaction score 10,594 Location Morgan Hill Rating - 100% 1 0 0 Yes, mostly. They can crawl over corals disturbing them, but generally reef safe.
Nov 1, 2025 #3 dwest 5000 Club Member View Badges Excellence Award Reef Squad Emeritus Hospitality Award Midwest Reefer Joined Feb 27, 2018 Messages 5,011 Reaction score 9,602 Location Cincinnati Rating - 0% 0 0 0 Mine will randomly graze on corals. Mostly bases of acropora. My corals recover as there is only one pencil urchin in a 180 gallon tank.
Mine will randomly graze on corals. Mostly bases of acropora. My corals recover as there is only one pencil urchin in a 180 gallon tank.