Discussion in 'Other Reef Talk' started by Jeff Rehling, Dec 10, 2016.

  1. Jeff Rehling

    Jeff Rehling Guest

    Question, I have a tank running that's about 6 months old. Added two Kessil lights and now have some hard green spotty algae growing on the glass. It's really hard to scrape off. It's not hairy, but more like the purple algae. What's up? Too much light, too much food?
    My fish are emperor angle, foxface, watchman goby, blue tang, sgt major, and two clowns.

  2. Calde0920

    Calde0920 Guest

    Can possibly be coraline it comes in different colors green blue pink purple orange pics would help
  3. rygh

    rygh Supporting Member

    Sounds like coraline algae. I get the same ugly green on the front glass as well.
    You are essentially looking at the underside as well, which is probably uglier and greener.
    At any rate, normal. Get a good scraper. (Razor blade for glass aquarium, hard plastic for acyrlic)
    Coral reefer likes this.
  4. Flagg37

    Flagg37 Officer at large

    +1 to scraping it off with razor blade.

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