urchin question

I have a new halloween urchin in the tank and i was wondering if they would string a fish cause since he went in my mandarin is acting very strange and looks to me losing alittle of his slime coat. I read they are as safe as a tux urchin but i am thinking other wise. Its name is a "Tripneustes gratilla" i am reading many things say they will eat coral and kill fish. It looks like i already lost my mandarin that eat everything so i am not happy at all.

 

They should be safe, but I did find this when I Googled: This is an uncommon urchin in the aquarium trade. Some believe that their spines are very slightly venomous. Use caution to avoid injury while maintaining the aquarium.

So I guess the mandarin could have gotten *****ed...but I wouldn't think it's all that likely. I have one and none of my fish have been bothered by it. Plus, there is no evidence it is actually venomous. Just keep your eyes out, I guess!

LOL oh my, it starred out p r i c ked

 

The way the fish is acting probably has nothing to do with the urchin. And yes they are reef safe, but need a tank with a lot of coralline, or other algaes, they like the film algaes as well. Mandarins do the slime coat thing for many reasons, but I do not think the urchin has anything to do with it.

 

i am almost 100% certain he spiked my mandarin cause hes got a small scar above his fin he did not have before and the urchin is my only new edition.

 

Just read your edited post. Sorry for your loss, but I really don't think the urchin had anything to do with it. I've been Googling and don't see anything about them eating fish.

Sorry for your loss

 

You say you are reading things, can you please post a link ?

I have neve heard of urchins that were not reef safe with regard to fish. Something must have to inpale it self onto a spine. Urchins do not have what it takes to impale something under their own powers.

 

Mmm... Im not so sure on the impaling. lol. Ive seen a few peoples hands from picking up a rock and slightly touching a Longspine. Right through their finger...