New Acan head changing color
Printed From: Utah Reefs
Category: Specialized Discussion
Forum Name: LPS
Forum Description: This is the place to ask questions LPS corals.
URL: http://www.utahreefs.com/forum/forum_posts.asp?TID=75417
Printed Date: July 14 2025 at 6:27am
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Topic: New Acan head changing color
Posted By: tealgirl
Subject: New Acan head changing color
Date Posted: March 20 2015 at 6:00pm
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So I have an acan that turned into a large colony, and have another head near by that has grown extremely large, but until recently it has not had any new heads. Both are similar colors... so I was slightly shocked with the large acan started to show a new one attached, that is not the same color. Has anyone ever had this happen? The colony next to it is a dark orange and pink. The large one next to it is almost fully orange, but the newest little acan attached is light green and pink? I have acans that are green, blue and other colors in the tank, but none near by. Can the new ones just change color?
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Replies:
Posted By: Mark Peterson
Date Posted: March 20 2015 at 7:28pm
Welcome to the hobby.  Yes, it has to do with chlorophyll, lighting spectrum, pigments, carotenes and who knows what else. This is one of the most fascinating and yet least understood aspects of coral husbandry. Aloha  ------------- Reefkeeping Tips, & quick, easy setup tricks: www.utahreefs.com/forum/forum_posts.asp?TID=9244 Pay it forward - become a paid WMAS member 
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Posted By: Pete Moss
Date Posted: March 25 2015 at 1:08pm
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Sometimes even slight differences in lighting ( shade from surrounding rock ) can change the color of an acan. They are some of the most sensitive corals to light conditions out there. I've seen them completely morph colors. New polyps often have different color patterns the adult colony, and usually color up to match the colony later. ------------- 125g 90g 2x33g 34g What stores do I recommend? Up North: Bill ( Saltwater Paradise 801-317-8115 ) Down South: Jerry ( Reef On 801-563-0600 ) Member of GCFB |