I think my urchin just ate my...

CATALYST · 12-31-2007, 10:59 PM

yellow polyps? There were like 7 of them on the back wall of my tank and now they are gone along with the coralline underneath. They are gone from the rock they were spreading from too. Weird?

tbittner · 01-01-2008, 02:01 AM

Witfull · 01-01-2008, 04:32 AM

this is not unusual. urchins are bulldozing grazers. they scrape off whatever is in their path.

Melanie · 01-01-2008, 07:57 AM

I try to watch mine with an eagle eye. I don't trust them.

mps9506 · 01-01-2008, 08:28 AM

Quote:

Originally Posted by Witfull

this is not unusual. urchins are bulldozing grazers. they scrape off whatever is in their path.

Agreed with this. They will plow over rocks, and corals in their way. I would check the spines of the urchin, a few may be stuck to the urchin. I would be surprised also to see a yellow polyp or two floating around somewhere in the tank waiting to attach to something else. They scrape off very easily from glass.

CATALYST · 01-01-2008, 03:29 PM

I don't miss the polyps. It was just a little odd. I've seen him eat scallops and I give him nori when he comes to the top. What else would he eat? Any ole' coral?

BoomerD · 01-01-2008, 05:11 PM

If this is so, consider yourself LUCKY. Yellow polyps are nasty invasive animals. They often crowd out other, more desireable species. Their sting is quite potend and they will usually kill any other coral they can touch.

12-31-2007, 10:59 PM	#1 (permalink)
CATALYST Reef Lobster Join Date: Mar 2007 Location: SoCal Posts: 1,442 View Gallery Karma Komment	I think my urchin just ate my... yellow polyps? There were like 7 of them on the back wall of my tank and now they are gone along with the coralline underneath. They are gone from the rock they were spreading from too. Weird?

01-01-2008, 02:01 AM	#2 (permalink)
tbittner Watch this Ma! Join Date: Jun 2007 Location: Northern VA Posts: 5,563 View Gallery Karma Komment Add yours!	Re: I think my urchin just ate my... __________________ Terry 150g predator tank full of killers. Soon to be upgraded to a 360g. 450g reef 300g sump.

01-01-2008, 07:57 AM	#4 (permalink)
Melanie Golden Moray Join Date: Jun 2007 Location: Naples, Florida Posts: 2,120 View Gallery Karma Komment Add yours!	Re: I think my urchin just ate my... I try to watch mine with an eagle eye. I don't trust them. __________________ My Reef Journey Latest Recap My Videos My Flickr Photos Pres. of Dork Club I love ScubaDrew and North East Coral! Read why HERE...

01-01-2008, 03:29 PM	#6 (permalink)
CATALYST Reef Lobster Join Date: Mar 2007 Location: SoCal Posts: 1,442 View Gallery Karma Komment	Re: I think my urchin just ate my... I don't miss the polyps. It was just a little odd. I've seen him eat scallops and I give him nori when he comes to the top. What else would he eat? Any ole' coral?

01-01-2008, 05:11 PM	#7 (permalink)
BoomerD Reef Shark Join Date: Nov 2003 Location: Northern California Posts: 5,638 View Gallery Karma Komment	Re: I think my urchin just ate my... If this is so, consider yourself LUCKY. Yellow polyps are nasty invasive animals. They often crowd out other, more desireable species. Their sting is quite potend and they will usually kill any other coral they can touch. __________________ Intelligence is not knowing all the answers, but knowing where and how to find them! www.google.com

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