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01/12/2020, 07:57 PM | #1 |
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Join Date: May 2013
Location: Saint Louis, MO
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Urchin eating sps
Hello. I have had this urchin for a year or so and I have seen it eat dying acropora frags before but never alive coral. Then the past two days it was in the same spot on an acro which I thought was weird. After it moved I noticed a lot of the acro is dead. It for sure ate live acro tissue.
Pic of the urchin and coral below Sent from my iPhone using Tapatalk
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Mixed Peaceful Reef :) ~140 Gallons of Water Non-agro fish Instagram: Oshanickreef |
01/12/2020, 07:59 PM | #2 | |
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Quote:
I keep these urchins for years and my system is sps dominant. Never seen it actually eating the coral Sent from my SM-G960U using Tapatalk |
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01/12/2020, 08:54 PM | #3 | |
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Two days ago the coral looked fine and after the urchin left it has PE and I’m sure it will bounce back. Sent from my iPhone using Tapatalk
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Mixed Peaceful Reef :) ~140 Gallons of Water Non-agro fish Instagram: Oshanickreef |
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01/12/2020, 08:56 PM | #4 |
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01/21/2020, 12:21 AM | #5 |
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Join Date: Jan 2015
Location: Fremont, CA
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My diadema long-spine urchins do that all the time. I think, more by accident than intentionally, but whatever is on their feeding path gets milled down. Mostly they do damage to the flat encrusted portions of the corals but damage to branches is not unheard of either. So usually, when the algae are back under control, I put them in the sump or a different tank where they can't do too much damage.
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Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio 3 P. diacanthus. 2 C. starcki Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +... |
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