What is this?

Bougie

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Referring to the clear tentically thing in the center of the pic. It's magnified 7x so it's pretty small. I have a bunch of wheel hydroids on my glass. Is it a hydroid?

PXL_20240211_223048938.jpg
 

Freshwater filter only or is it? Have you ever used an HOB filter on a saltwater tank?

  • I currently use a HOB filter on my reef tank.

    Votes: 56 25.2%
  • I don’t currently use a HOB filter on my reef tank, but I have in the past.

    Votes: 57 25.7%
  • I have used a HOB on fish only or quarantine tanks, but not on the display tank.

    Votes: 53 23.9%
  • I have never used a HOB on a saltwater tank.

    Votes: 52 23.4%
  • Other.

    Votes: 4 1.8%
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