urchin

Hello, this is my first post here on reef2reef. I have a 13.5 evo with an AI Prime for lighting My tank is stocked with a ocelaris clown, six line wrasse, 1 squamosa clam, 1 small crocea clam, some corals, and a pincushion urchin. Lately there has been some things that are concerning me like...

Hi I am looking for a tuxedo urchin, or pincushion, and I am wondering if anyone has one that they do not need or want anymore that I can buy off them in the Los Angeles area. If so let me know :) Thanks I can also trade some corals with you for it.

After surviving a nudibrach takeover my tank is full of a purple hair type algae that is mixed in with nudibranchs that are dying off. Would a tuxedo urchin be able to eat it’s way around or thru the nudibranchs without harming itself?

Purchased as a “fire” urchin. Not sure what it is any help is greatly appreciated.

Hello all! About 6 weeks ago I rescued a 5+year old Fluval EVO V setup that the previous owner had let slide and was ready to literally flush and toss. :eek: Equipment: It had been setup as a reef tank with the stock AIO equipment and filtration, and what looks to be an aqueon 50w heater. About...

Hi All, Simple question (I hope). I have a fairly large fuge full of chaeto, rubble, pods and GHA. If I was to put one of my tuxedo urchins in my fuge, would they eat up the GHA (and a bit of chaeto) and leave the pods alone? Or would I essentially wipe out my pods? Tanks is a 180g (see build...

It keeps like biting or attacking spines.. what should I do!?

I recently downsized my 20G reef tank into a 10G, and every animal and coral seems to be thriving except for my tuxedo Urchin. He's acting normal, tentacles extended, but one small section of spines appears to be missing. My guesses are (1) that he's stressed and (2) that my halloween or one...

Hi guys, I just received a short spine urchin in the mail in a plastic bag.. obviously the bag leaked and when I received him he was in water that was maybe 1/4 his height. I've read that air is bad for urchins, so things didnt look good. I just filled his bag up with tank water, and let him...

Hello! Yesterday I went to my lfs with the intentions of grabbing an anenome and 3 peppermint (hoping they’re true) to deal with my very mild aptasia issue I’ve had for the past year in my 120. Knowing myself, I walked out with 6 peppermint, a urchin, and a horseshoe crab. i purchased the...

Hows it going everyone, I just had some questions about potential additions to my 75 gallon reef tank. I have a lot of rock with arches and plenty of caves etc. I currently have the following in my tank in terms of inverts and cleaners 1 skunk cleaner shrimp 10 nassarius snails 10 turbo snails...

Recently just started up a 37g tank, I’m on week 2 of cycling and I had a pair of clown in there to help cycle. I noticed 1/2 clowns started showing signs of ich so I removed them both into a hospital tank and begun treating them. The one experiencing symptoms did not make it, the other clown...

Hi, so I got a red tuxedo urchin recently (about 4-5 days ago) A TINY one (aquacultured), I had never seen one this small. I acclimated him (admittedly quickly) I wanted to get him into the tank quickly, but I did do a quick drip acclimation. I put him in and he looked great. The next day he...

My LFS had a sale on purple pincushion urchins and said they are the same as my tuxedo urchin so could share a tank? Is this correct or am I being given bad information, wouldn't be the first time, I really like urchins so I would like to have both but is it possible?

So I know urchins like to take stuff to try and disguise themselfs but I never expected this one. My tuxedo urchin is walking around with a piece of egg crate. I was wondering if it is safe to take it off of it as this was holding a plug of rasta zoa's and I don't have any spare to replace it. I...

So as I was doing my nightly check on my DT I observed this. She had been at it for a while before I even thought to video it. So now I have this little pile of what I think are eggs. I guess they won't hatch into anything since my only other urchin in the tank is a tuxedo. Has anyone else had...

Hi. So, a few weeks back I got a tuxedo urchin, from all of my research I found people saying they are reef safe and can coexist with other inverts. But since I have had the urchin in the tank I am seeming to be constantly rescuing my trochus snails that are upside down on the sand bed. I...

Hi y’all! We added this sea Urchin to our tank 2 days ago and it hasn’t moved at all. We took the time to acclimate it but due to its immobility we believe it might be dead? I’ve attached photos of it here.

The other day I noticed that my tuxedo urchin had climbed to the top of a rock, and started spewing powdery stuff from its top. It continued to pour out for 20 min or so, seemed never ending (the fish loved it! A mid-day snack). I've heard of clams doing this, but have never seen anything like...

Hello! I have two urchins, a pincushion and a tuxedo. Recently, one of them started getting these white balloon like balls coming out of it. Can anyone identify what they are? Pictures attached

Blue tuxedo Urchin (Mespilia globulus)

I woke up at about 2 am to enjoy my tank when the lights go off and there are hundreds of baby snails on the rocks and on the glass.. I also saw what looked like a baby urchin and some type of starfish. Can anyone help ID them?? I posted some pics. They’re not the best because they’re at night.

So - here is a picture - tell me where you think it was taken?

I have an urchin that came in as a hitchhiker which might be a pin cushion urchin. She's been increasingly active lately and I'm concerned she might not be getting enough food. I offered her some Nori but she doesn't want it. I found an estimate that they can reach eight inches but the same site...

Ive had my long spine urchin for about 2 years. Over the last 2 days it started getting very slow and not moving to much. Then i check it out today, and see all of these white round balls that look like white BBs on its top.... looks like they are coming out of it, but havnt seen any release...