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Thread: Diy reef rock

  1. #1
    Just_Tim
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    Diy reef rock

    With the problems with hydraulic cement I want to find what will work for the long term fore diy rock.
    I want to form a floating rock shelf using oyster shell. I have the magnets but I'm looking for everyone else's opinion on the cement type to use.

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  2. #2
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    I don't know bro. I am torn as well. I built a fish playground for HerDT out of a ton of different sizes of PVC and ziptes for the base, but there is a ton of space to fill in. I was going to use pond foam and then cover it with smoothcast 22 and UERfill 11 for a more natural look but I am concerned for the buoyant nature of the pond foam. I may attach it to some other live rock pieces to weight it down, but there isn't a scale of "this much pond foam= this much buoyancy".

    Following along to see if there is a better answer. I have spent a lot of time researching with little to no descent answer.

  3. #3
    Just_Tim
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    Best I've seen is white Portland cement type II but it requires an undetermined cure time for ph.

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  5. #4
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    Marco rocks sells some hydraulic cement and Acyrl 60 mixture. http://www.marcorocks.com/aquascape-...s/e-marco-400/

    If I had use the Acryl 60 mixed in mine, I'm pretty sure I would never have had a rock wall problem. You can get it from Amazon, probably Lowes and HD. When I do my new rock wall, I'm thinking the epoxy route so the wall thickness is less, keeping more water volume and space.

    The look and texture with the pond foam coated with the two part liquid epoxy was great and my corals and coraline grew on it well. If the magnets will hold it in place, maybe the foam with the epoxy cover would be the way to go for the floating shelf ones you want to be able to remove.
    Don't look here for a comment.

  6. #5
    Just_Tim
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    Just to be clear, I should use the acryl 60 additive to standard hydraulic cement?

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    That's what I think. I've been wrong once, though.
    Don't look here for a comment.

  8. #7
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    Quote Originally Posted by Just_Tim View Post
    Best I've seen is white Portland cement type II but it requires an undetermined cure time for ph.

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    Former club member did this and by using his water change water, in the curing vat, it took 9 months to cure his rock made with Oyster shells and white portland cement. Look up Misfit 666 on here and I think he talks about the procedure.
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  9. #8
    Just_Tim
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    I really want to find a pH neutral cement or additive so I don't have to cure this for that long. I'm still searching.

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  10. #9
    Registered User Levi's Avatar

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    Quote Originally Posted by Just_Tim View Post
    I really want to find a pH neutral cement or additive so I don't have to cure this for that long. I'm still searching.

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    Depending on the size for the magnetic rock, put it in the toilet back tank so every time you flush you get a rinse and fresh water.

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  12. #10
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    Quote Originally Posted by Levi View Post
    Depending on the size for the magnetic rock, put it in the toilet back tank so every time you flush you get a rinse and fresh water.

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    Clever thought.

  13. #11
    Registered User Levi's Avatar

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    Quote Originally Posted by static reef View Post
    Clever thought.
    was actually something another member posted awhile ago when making smaller diy rocks, said it dropped the rocks to neutral PH in like a week or something, must have been the only toilet in the house though lol.

  14. #12
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    My rock wall went down the sh*tter.
    Don't look here for a comment.

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  16. #13
    Registered User SpaceOps's Avatar

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    Quote Originally Posted by Joe View Post
    That's what I think. I've been wrong once, though.
    But it turned out you were wrong about being wrong?
    Northernmost SPS aquarium in the US.

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  18. #14
    Registered User SpaceOps's Avatar

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    Quote Originally Posted by static reef View Post
    Clever thought.
    +1 if you don't have a pressurized tank, but it may require multiple flushes to get the primary task done if you displace too much water.
    Last edited by SpaceOps; 02-15-2016 at 10:01 PM.
    Northernmost SPS aquarium in the US.

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  20. #15
    Just_Tim
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    Lmao. Sometimes I really like the responses from this club, this is one of those times.

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  21. #16
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    Quote Originally Posted by SpaceOps View Post
    But it turned out you were wrong about being wrong?
    Almost.
    Don't look here for a comment.

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