urchin

Hi! so I was working on my research and was trying to identify what benthic organisms shown on the picture. I initially thought it was an urchin but turns out it was coral. Can anyone identify the type of coral it is please?

Hey Everybody! i have been toying with the idea of this for a few weeks, but want to see what kind of other tanks yall have. I really want to set up an urchin showcase tank. I personally love longspine sea urchins, Diadema setosum, and want to set something up for them. If you were going to...

Hi, my urchin has been losing spines, ive just noticed quite a few on the sand bed. I put it down to either he's hungry or possible salinity shock when my ATO put a little bit too much water into the tank (but I think he's hungry). I only just noticed them today, so its still quite new. The...

This thread is for the general discussion of the classified ad Red Tuxedo Urchins. For more information about this item, please click the link or ask a question in this thread. Please add to the discussion here.

I have a long spine urchin, tuxedo urchin, various hermits, emerald crabs, snowflake eels, and file fish.

I’m getting out of salt and back into freshwater. I have some livestock for sale then I will put up some equipment. Local pickup only (I live in West Knoxville). I have the following for sale: 2.5-3” a yellow Tang- $200 4-damsel fish (three black and white and one yellowtail) all get along-...

Someone please help!!! I have a pincushion urchin who’s been dropping spines… I thought it was shedding… I have really high nitrates and low ish salinity 1.021 ish and Ive been trying to bring up slow due to being told urchins are sensitive and the last water change I did is when he started...

Hey guys. I'm having trouble identifying this algae. It's growing in clumps everywhere in the tank. Mostly on rocks or frag plugs. It's really tough to pull off. Looks like small lettuce. I'm thinking turf algae as it doesn't look like anything else. haha And then what eats it? I only have a 60...

Has anyone found the stl for yoda ears? Looking to print some for my urchins.

I've heard that pincushion and tuxedo urchins will starfish. Has anyone experienced that, or is it safe to keep both in the tank at the same time?

My pincushion urchin has been slow moving around the tank lately but he still moves a lot. Sometimes he will stay in one spot for a little while then move. Some of his spines were drooping and the ones that weren’t drooping were moving around like crazy. Then when I checked again after about 3...

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?