Zoa ID please

jdschwar

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Can you please ID these Zoas? Thank you in advance.
 

Mastering the art of locking and unlocking water pathways: What type of valves do you have on your aquarium plumbing?

  • Ball valves.

    Votes: 38 52.8%
  • Gate valves.

    Votes: 38 52.8%
  • Check valves.

    Votes: 15 20.8%
  • None.

    Votes: 18 25.0%
  • Other.

    Votes: 6 8.3%
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