Resolved What type of urchin

Discussion in 'ID This!' started by ledaqualights, Mar 5, 2013.

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  1. ledaqualights

    ledaqualights 3reef Sponsor

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    Can anyone tell me the name of the urchin?


    Also when I was cleaning my tank and doing a water change today I saw that it was sort of spewing out white stuff?

    It almost looked like smoke....It is still moving around and appears fine, I was just concerned as to what that was?

    Thanks in advance
     

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    Last edited: Mar 5, 2013
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  3. cosmo

    cosmo Giant Squid

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    guessing a purple short spine, and it probably was spawning, kinda not a good thing in general as they usually do that because its not happy, or REALLY happy IIRC. what are your water params?
     
  4. 2in10

    2in10 Super Moderator Staff Member

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    Sounds like it was spawning, very pretty urchin
     
  5. Corailline

    Corailline Super Moderator Staff Member

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    It is a dry heat, yeah right !
  6. cosmo

    cosmo Giant Squid

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  7. ledaqualights

    ledaqualights 3reef Sponsor

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    Thanks for the help everyone... Its been great having this urchin, it start off so tiny and has grown over the months...however I don't like it drawing all over my purple coraline rocks :p

    PH - 8-8.2
    Ammonia/nitrite - 0
    nitrate 10ppm-20ppm
    Salinity 1.020 last time I checked (2 weeks ago) but should be higher now

    I had a small damsel die a little while ago and I couldn't find it amongst all my rocks...my nitrates went through the roof but are slowly coming back down, that's probably the best its been in a while.
     
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  9. cosmo

    cosmo Giant Squid

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    I'd get a test kit, thats low salinity and HIGH trates for an urchin. Was it white when you got it?
     
  10. DevinH

    DevinH Montipora Capricornis

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    Code 3 code 3 on salinity!!
     
  11. ledaqualights

    ledaqualights 3reef Sponsor

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    Its probably sitting close to 1.025 now...I haven't been topping up with R/O water, but I am going to check the salinity in a few days when i head back down to my LFS.

    The urchin has always been that colour, right from when I got my live rocks. It start off as just this little white ball, no bigger than a 5 cent piece and has grown over the months.

    What do you suggest that the salinity be at? I was always told that it was fine somewhere between .024 and .027

    Sorry also didnt mention, I had a bit of an issue with white spot so I had a lower salinity due to this.
     
  12. cosmo

    cosmo Giant Squid

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    25/26 is good IMO, but do you not have a refractometer to test your salinity? That is a must unless you want a major tank crash ASAP IMO