Why is my coralline algae falling off the back glass?

Discussion in 'Algae' started by TravisVT, Oct 14, 2013.

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  1. TravisVT

    TravisVT Fire Worm

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    I have noticed recently the coralline algae on the back glass is flaking off in small sheets. Everything seems to be doing fine otherwise. Wondering if this is normal or should I be looking into a potential problem? The back glass was 90% covered about 2 months ago, now its about 50% covered.

    Thanks!
     

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  3. Va Reef

    Va Reef Giant Squid

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    How are your big 3? (Alkalinity, calcium, and magnesium)

    Have you added urchins or noticed a lot of asterinae?
     
  4. TravisVT

    TravisVT Fire Worm

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    I have not tested the big three in a little while (I know I should before I post something like this)
    No urchins in the tank but I have noticed a lot more asterina stars lately. What would cause that?
     
  5. Corailline

    Corailline Super Moderator Staff Member

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    It is a dry heat, yeah right !
    Va Reef in on the right trail, always check the big 3 and rule that out 1st, second would be a change in lighting, new bulbs, extension of photo-period.

    Are the starfish eating film algae or coralline?
     
  6. TravisVT

    TravisVT Fire Worm

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    No change in lighting or photo-period in a year. Not really sure what the starfish are eating. I notice a lot more in the morning before I go to work (lights off) and they seem to disappear throughout the day. I mostly notice them on the side and front glass.
     
  7. Va Reef

    Va Reef Giant Squid

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    And of course I forgot about lighting factor. My starfish started out eating film algae and just developed a taste for coralline algae. My back wall looks line a war zone, craters of no algae zones and such.

    Usually Asterinae and urchins are the #1 culprits for eating coralline algae, though some snails do eat it.
     
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  9. Mr. Bill

    Mr. Bill Native Floridian

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    FWIW, a lot of CuC members will munch on Coralline if their diet is lacking. However, it sounds more like yours is dying and falling off; the Asterina may be feeding on the dead/dying Coralline, causing a population explosion. I, too, suggest testing your chemistry; Coralline uses Cal, Mag, and Alk the same as stony corals.
     
  10. Newreef15

    Newreef15 Horrid Stonefish

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    yea test your levels sounds really weird

    off subject but you have a coral beauty and a bi angle in there you are brave my friend lol
     
  11. TravisVT

    TravisVT Fire Worm

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    I have just a bi-color, no coral beauty :)

    And I tested the big three today
    cal 460
    kh 8
    mag 1300

    Any more thoughts??
     
  12. oldfishkeeper

    oldfishkeeper Giant Squid

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    I'm thinking it's something eating it. Your levels look good to me.