ID this scary thing please

[xiongaquatics]

i just found this thing in my frag tank. i have never seen such thing so scary in my tank. let me know if this guy should go or stay. this thing is about .5"-.75" and with small pointing spike and lot of small thin tentacle.

 

[dizzo]

nice urchin! i have one of those lurking around was a hitchhiker

 

[xiongaquatics]

are these guy safe? should i keep it or take it out?

 

[dizzo]

he never bothered anything in mine might knock over loose coral at night.

 

[xiongaquatics]

ok thank for the id. you just save his life. he going back into the tank right now.

 

[droblack]

I'm not so sure that urchin is reefsafe. They can eat coral, and will mow down frags and small corals that are not well attached.

 

[twinspots_goby]

I believe this urchine is reef safe. I can't remember its name, but I still remember its white rings.

 

[fsu1dolfan]

Some like to eat coralline algae...so double check if thats important to you.

 

[Film]

That is a black pencil urchin we have a bigger one and its completely reef safe, they do at times knock over corals so make sure your smaller corals are either fastened down or in a place where they can't be knocked down

 

[commonstranger]

Those are great lil guys. If you dont want him in the tank just throw him in the sump he will be happy there too.

 

[treylane]

Rock boring urchin. Yes he'll eat coralline. He's reef safe, won't eat corals, will knock over loose frags, and tends to be more active at night.

 

[BlazinNano]

I have heard that if something chews a little on the coralline it is good because it causes it to grow back thicker. That is what an LFS told me when I got my urchin.

 

[DvvnXY18qs]

kinda looks like a clock my wife would hang on the wall of our living room!

 

[Neon Reef]

lol..no that's not true but it was a good sales pitch to get you to buy an urchin..

 

[BlazinNano]

well i have had him for about 6 months and have not noticed the coralline going away. the three new rocks I got about 3 months ago are starting to get color on them. Maybe it just takes them a long time to eat it..... IDK

 

[Cuda]

Looks like a bug:tongue: