DIY Frag disks

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Daddy-o

Daddy-o

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Big pieces in progress. Fill an old plastic bin with sand and add about 3/4" of cement:
1603585711505.jpeg

Cover cement with more sand and press flat:
1603585855627.jpeg

Add more cement:
1603585902972.jpeg

And another layer of sand and press again. Here is the other one I made this afternoon. In a week I will have 5 nice slabs.
1603586191612.jpeg
 

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: 55 25.3%
  • I don’t currently use a HOB filter on my reef tank, but I have in the past.

    Votes: 53 24.4%
  • I have used a HOB on fish only or quarantine tanks, but not on the display tank.

    Votes: 53 24.4%
  • I have never used a HOB on a saltwater tank.

    Votes: 52 24.0%
  • Other.

    Votes: 4 1.8%
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