2019年3月6日 · Limited Edition Halloween Sea Urchin Hats. Printed Reef; Oct 18, 2024; General Invert Forum; Replies 1 ...

2016年12月18日 · I have never had the long spine urchins. I have a Tuxedo, a Halloween, and a Rock urchin. My tank is spotless with regards to algae. My fuge is a complete mess with algae. I will never have a reef tank w/o an urchin for clean up crew. They are far superior to any other critter for algae cleanup. And yes, I have lots of coralline in my tank.

2022年10月15日 · The tentacles are the urchin's tube feet - that's how the urchin moves around. Urchins are tough to ID, and I haven't looked into them too much yet, but my guess (assuming the "thorns"/spines are not purple in color) would be either Temnopleurus toreumaticus (I can't find enough pics to compare with, but T. decipiens may be a possibility too) or Pseudoboletia indiana.

2010年4月8日 · My first black sea urchin lost his spines and died, I later realized (too late!) that my nitrate was at 35-40ppm. It was when I first started with a 20 gal mini reef. That is why testing at least once a week is so important, sometimes 2 or 3 times if you notice any slight changes like water clarity, algea blooms, heavy fish breathing, corals ...

2014年5月29日 · I love my "decorator urchin" (I have heard it called so many vairations of names - basically a solid-colored halloween urchin) but it gets its name for a distinct reason. As it wanders the tank, doing its awesome cleaning job, it collects shells, algae, occasional polyps, sand and almost anything to add to its collection of decorations.

2021年11月15日 · Grab a small container of freshwater dechlorinated and same temp as tank water - remove urchin and hermit and place in container. Urchin fairly quickly will release hermis. Place back in tank.

2018年6月16日 · Sea Urchin I was told they are safe for most reef tanks. Now I Discovered they can be deadly to many kept corals, Feasting on them at Night. I had a pencil urchin that ate a whole frag of clove Polyps one evening.

2009年1月5日 · About the only urchin I would recommend for a tank that is under 60 gallons would be a tuxedo. Regardless of the urchin you get you will eventually have to do supplemental feedings because it will end up eating all of your algae …

2020年5月11日 · There are red tuxedo urchins and different color variants of pincushion urchins. I think there's also a rainbow urchin as well. I have a pretty standard pincushion urchin, but his colors are still pretty vibrant.

2021年2月3日 · My sea urchin hasn’t moved around in a couple of weeks. He’s lost a few spines, but “grabs” if I try to touch them. The water salinity was a little high, but with frequent water changes, it’s going down.