CAN YOU GUESS.....

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Dr. Dendrostein

Dr. Dendrostein

Marine fish monthly
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Okay here's the next clue I'm taking off the hat and see if someone can figure out what this accessory is for aquariums, been around since the 1970s and I believe they stopped making it after 2000.

IMG_20201026_063741967.jpg
 

andrewkw

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We have a winner :)

If the prize is a devo face shield I will PM you my address :)

I've never used a diatom filter as they are a little bit before my time, but vaguely recall some people using them to polish water.
 

Algae invading algae: Have you had unwanted algae in your good macroalgae?

  • I regularly have unwanted algae in my macroalgae.

    Votes: 39 34.2%
  • I occasionally have unwanted algae in my macroalgae.

    Votes: 23 20.2%
  • I rarely have unwanted algae in my macroalgae.

    Votes: 9 7.9%
  • I never have unwanted algae in my macroalgae.

    Votes: 8 7.0%
  • I don’t have macroalgae.

    Votes: 31 27.2%
  • Other.

    Votes: 4 3.5%
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