Sea Urchin

Discussion in 'Invertebrates' started by Neil H, 27 Mar 2009.

  1. Neil H

    Neil H Moderator MASA Contributor

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    Guys,

    i have a sea uchin, but i would like more choraline growth in my tank....

    do urchins eat choraline?
    would sumping the urchin for a month or two increase my choraline growth ?
     
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  3. scubaninja

    scubaninja

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    It may, urchins eat anything in the system, bits of food on the floor etc, but when they cannot find enough they start going after algae. Is it a long spined urchin or a short spined? the long spined is more tempted to go algae wise and the short urchin goes more for weed i believe, not sure if i have that 100% but tobes can help out a bit more as i was talking about it with him a while back. Possibly try target feed him a bit so that he has ample food in one area but corraline grows really slowly so i think that might be a bit tedious, so maybe sump him, what is your sump like? there enough food for him in the DSB?
     
  4. Neil H

    Neil H Thread Starter Moderator MASA Contributor

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    Thanks scuba, yip there is plenty chow there for him... would be easy to target feed him there anyway ! Oh he is a short spined one !
     
  5. scubaninja

    scubaninja

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    oh ok, then he might have an affinity for nori if somehow there isnt enough in the sump:)
     
  6. Mtroboer

    Mtroboer

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    I believe it's the short spined ones that go for the coraline as I have a locally caught one and he seems to love the coraline growing on the glass!
     
  7. Neil H

    Neil H Thread Starter Moderator MASA Contributor

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    mine is a local boy as well!
     
  8. Mtroboer

    Mtroboer

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    Yip they love their greens as well!:thumbup:
     
  9. Mtroboer

    Mtroboer

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    Do you also have the one with the blue/greenish tint and pink tips? These are quite common in our rock pools, and is great at controlling algea.
     
  10. Neil H

    Neil H Thread Starter Moderator MASA Contributor

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    no this one is pretty much pitch black.... has almost doubled in size since i got him about 8 months ago
     
  11. Broder

    Broder Mudshark

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    Starfish, especially the local cushion stars also chow coralline algae.
     
  12. Neil H

    Neil H Thread Starter Moderator MASA Contributor

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    no starfish in my tank at the moment ..... just the urchin who is chowing coralline me thinks
     
  13. Warr7207

    Warr7207

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    Neil, I have 2 x Rock Urchins and a local pincushion starfish, all of them eat coralline, but they don't get close to making a dent. The secret to coralline growth is good Mg levels and seeding the tank with LR that has good coralline on it.

    If you ever want to come scrape some of mine off, you welcome ;)
     
  14. Tony

    Tony

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    I second Warren on the magnesium and throw in some calcium
     
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