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  1. #1
    Senior Member Rank = Nanasai Skoosh88's Avatar
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    Siporax or anoxic?

    I’ve been having a think about adding more biological filtration to the pond as all I have is a bio chamber with K1. I’ve had a good look at different types of Bakki rivers and I think this is the way to go for me, the main reason I am not going for a bakki shower is purely down to it making too much noise as my outdoor seating is right next to the only spot it could go.

    As the concept is relatively simple I’m going to DIY it and looking at ideas, the river will run along the coping stones on the side of my pond next to the filters as I can hopefully have enough room to add plants to the top of it to add a bit of colour and hide the filters behind it. I’ve been looking at garden planters / troughs and reckon I’ll get a couple of them linked by a tank connector something like this below


    Dims 33x32x70cm

    The original plan was to fill it with siporax but now I’m wondering if I should make it anoxic but not sure if I have enough surface area to make anoxic work effectively?

    Any thoughts anyone?


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    Last edited by Skoosh88; 04-06-2019 at 02:55 AM.

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  3. #2
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Sounds like a good plan Skoosh and I think it would look great.

    I watched a video on one a Yorkshire guy forgot his name and it looked ok.
    Not too sure on the anoxic but you could put plants in there.
    I use these
    https://www.wickes.co.uk/FloPlast-SP...-40mm/p/431951

    As tank connecters makes a good seal as long as it is tight enough.
    John

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  5. #3
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Isn't Siporex the stuff with glass on it?
    A couple on here said they wouldn't use it but I have no experience with it.
    John

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  7. #4
    The anoxic would work a treat I reckon and you can plant it too so best of both.
    1 basket per fish plus a couple for luck if you have the room.
    If not, a slow running “river” with either grog, pumice or even some Japanese mattting. (Grab some of the compressed stuff off Ian at Evolve).



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  9. #5
    Senior Member Rank = Grand Champion andikoi's Avatar
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    you can get showers with a spigot so it returns underwater,you could put something like CB or pumice in the river as it will be constantly submerged,,,andi

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  11. #6
    Senior Member Rank = Nanasai Skoosh88's Avatar
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    Quote Originally Posted by john1 View Post
    Isn't Siporex the stuff with glass on it?
    A couple on here said they wouldn't use it but I have no experience with it.
    It is formed using a combination of glass and salt then heated to get rid of the salt leaving the internals extremely porous. I think the Yorkshire man your talking about could be a guy called ‘Wrighty’ and he has made a diy siporax river which is working well for him, he does great videos and builds all his filtration himself including a RDF and is clearly a very good craftsman. (If that’s not who you were thinking about you should look him up, he sounds like a great guy).

    Not sure what people don’t like about it as I haven’t heard many reports about it TBH but the guys on YouTube including Adam Julyan use it over K1


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    Senior Member Rank = Nanasai Skoosh88's Avatar
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    Quote Originally Posted by bigcarpchaser View Post
    The anoxic would work a treat I reckon and you can plant it too so best of both.
    1 basket per fish plus a couple for luck if you have the room.
    If not, a slow running “river” with either grog, pumice or even some Japanese mattting. (Grab some of the compressed stuff off Ian at Evolve).



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    I like the idea of anoxic so if I have room I might do a mix of the 2, I don’t want a huge turn over through it as it will obviously make the return to pond louder


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  13. #8
    Senior Member Rank = Nanasai Skoosh88's Avatar
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    Quote Originally Posted by andikoi View Post
    you can get showers with a spigot so it returns underwater,you could put something like CB or pumice in the river as it will be constantly submerged,,,andi
    I’m a bit limited for floor space where the filters are as I did look for showers with under water returns, with the river I get good surface area and it tarts up the pond a bit which will keep the mrs happy Siporax or anoxic?


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  14. #9
    Junior Member Rank = Fry jimsharples's Avatar
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    Adam Julyan has quite a few videos on bakki rivers https://youtu.be/ehKR2RlomWI

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    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Quote Originally Posted by Skoosh88 View Post
    It is formed using a combination of glass and salt then heated to get rid of the salt leaving the internals extremely porous. I think the Yorkshire man your talking about could be a guy called ‘Wrighty’ and he has made a diy siporax river which is working well for him, he does great videos and builds all his filtration himself including a RDF and is clearly a very good craftsman. (If that’s not who you were thinking about you should look him up, he sounds like a great guy).

    Not sure what people don’t like about it as I haven’t heard many reports about it TBH but the guys on YouTube including Adam Julyan use it over K1


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    That's who I meant,Adam Julyan.
    John

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  18. #11
    Senior Member Rank = Nanasai Skoosh88's Avatar
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    Having read through MS website again about anoxic I think I’m going to have to go for siporax. If I made up the baskets as per MS instruction I would only get 4 baskets in which isn’t going to do a great deal as I have about 12 fish...


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  19. #12
    Senior Member Rank = Nanasai Skoosh88's Avatar
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    Quote Originally Posted by jimsharples View Post
    Adam Julyan has quite a few videos on bakki rivers https://youtu.be/ehKR2RlomWI

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    Yea his look the dogs dodahs but straight off the bat it’s over £100 for a plastic welder hence why I’m going for pre made planters and will probably try installing some ‘walls in in using solvent weld and marine seal


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    Junior Member Rank = Fry jimsharples's Avatar
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    Quote Originally Posted by Skoosh88 View Post
    Yea his look the dogs dodahs but straight off the bat it’s over £100 for a plastic welder hence why I’m going for pre made planters and will probably try installing some ‘walls in in using solvent weld and marine seal


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    Totally get that, I like your idea of using planters

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  22. #14
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    If going to DIY why not make from ply and paint/seal the inside.
    Maybe one sheet of 8x4 would do and make as your own design.

    Mind you I like Adam Julian's one and works well.
    John

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    Senior Member Rank = Nanasai Skoosh88's Avatar
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    I did see a cheap plastic welder and thought of giving it a go but I’ve completely changed my mind again, one of the two returns from the drum goes straight back to the pond, I’m going to re route it about 6m into the garage where I reckon I have space for an IBC that I could fill with baskets for anoxic filtration. Just trying to figure out the logistics of it and making room for the tank. This better not turn into a Frimley QT build Siporax or anoxic?


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  26. #16
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by Skoosh88 View Post
    I did see a cheap plastic welder and thought of giving it a go but I’ve completely changed my mind again, one of the two returns from the drum goes straight back to the pond, I’m going to re route it about 6m into the garage where I reckon I have space for an IBC that I could fill with baskets for anoxic filtration. Just trying to figure out the logistics of it and making room for the tank. This better not turn into a Frimley QT build Siporax or anoxic?


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    Haha Haha mint fred pass the tenas

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