ID this urchin please!

[Jermz79]

I have 2 of these in my 12gal and 2 of them in my 29gal. They don't seem to be harming anything ...

 

[MaryPa]

It`s a pencil urchin,very harmless but will get too big for the 12 gal. If I remeber correctly they get to about 12". I have one in my 30 gal and he`s/she`s grown to about the size of a lemon since November. It was a hitch hiker in the LR.

 

[Jermz79]

WOW 12" huh! I noticed they grow really fast ... the ones in my 29gal went from about the size of a pencil eraser to the size of a gumball in no time!

I'll leave them alone until they get to big and then trade them at my LFS!


Thanks.
Jermz