I would like to get an urchin, but am unsure of which one. I like the tuxedo urchin and there is a 'Royal Urchin' at a lfs. The royal urchin is a purple colour, about 3 inches in diameter. I would like it to eat any hair algea/bryopsis (if possible) and my coralline is growing everywhere so...

hitchhikers, those lovely things that come on our Live rocks and seem to pop out much later in life... Show me what hitchhiker you have gotten , good and bad!

Happy Weekend Stooges!:wavey:

I noticed this in the 5.5 g the Thursday night it didn't really move when I poked at it but did move it's spines it stayed in that spot all day Yesterday but this morning it's gone. Is it an urchin? are all urchins algae eaters or are there non reef safe urchins

Hey all... I have recently sold my setup and we are getting ready for tear down and move this weekend... But today I noticed 3 Black Urchins in the tank ... 2 of them on LR and 1 on a piece of coral... 1 of them i can see clearly eating at the LR its on.. Where did they come from?!?!? They...

I know for some of you..this will be a long..very long list.. I was wondering if you could list your tank size and whats in it..from snails to fish to coral to algae... kinda give me an idea whats in with your SH's i am hoping by knowing whats in your tanks.. i can research the stuff a bit...

My 125 reef system has begun to experience excess algae growth. My live rock seems to stay pretty clear due to the (4) red mithrax crabs and yellow tang that occasionally picks. The surface of the gravel is where most of this growth is occurring. I have added (2) small queen conchs in an effort...

To all, I have a 125 gallon reef setup that has been running for about 3 months now. All sorts of creatures are starting to crawl out of the rocks now. The rock is Gulf of mexico aquacultured. I have already removed 3 urchins and separated them into a container within the tank. I will be...

:help: While my gulf aquacultured rock is still getting acclimated, I've got new visitors popping out everyday. I found a rock boring urchin last night and separated it into a plastic container, within the tank. It's about the size of a quarter. I've been told that these are destructive in a...

Hi, I was wondering if someone could help me wit this new addition to the tank. I was looking over the rocks and all of a sudden saw this spiked friend. I think it's a sea urchin, but what shocks me is that I haven't gotten any new rock nor anything in a good lon time, at least four months. If...

This was hard to get this picture. It only comes out when the light are out.It is the size of a adults finger tip and eats algae too the bare rock.I hope the pic is ok it is my first try. Thanks

Hi all! I have been reading your forum for about two months. Just set up my first sw tank this past Saturday. When I came home with my live rock, I unwrapped the paper to find this brown and white polka dotted creature living in my rock. Being a newbie, I called my local dealer and he said...

I'm Attaching Pics They're the best I can do. There are three of these guys now. The on pictured Is Is bigger than a golfball but smaller than a base ball and the other two are about quarter sized. They came in with some flordia live rock I think and were only about a centimeter 3 months ago...

Well, it was only fitting that I named our Keys Reef exhibit's newest (and only) resident Echinometra lu****er (Caribbean Rock Boring Urchin) after his brother's uncle's cousin's former roommate on his mother's side. Yes, I am of course talking about Jerel's beloved longspine (Diadema...

Tank diversity: good, bad, ugly? We all want the nicest tank we can have, we all want brilliant colors and neat critters but should we be keeping this stuff together in a closed system. Keep that term closed system at the forefront of your thoughts, remember this is not the ocean. We can try and...

i found this critter in my tank, an urchin of some sorts. i would like to know if this urchin is destructive like those nasty nudies that i had earlier in the week. so far the only 2 critters i miss are my watchman goby and fire shrimp, i put the goby in last week, and fireshrimp in last month...

this urchin hitchhike into my tank off of a piece of Pavona I got last week, can some one tell me if it is safe to keep in my tank? he doesn't look like any kind that I know

Please help me....I was given a gift of a sea urchin, (if you can believe it), and I can't find anything about it in my references....it's mostly black, with black needles, or spines.....about 5 inches long.....do these guys need any special feeding of treatment? so far, all I got was they make...

Hey all- I have two types of urchins in my tank. One type is black and was a hitchhiker on my gulfview rock. I was told by Dale to pick these off becuase they eat coralline and multiply very rapidly. I only see these rarely as I have got rid of the bulk that was on the rock when it first...