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  1. #1

    What to do about filtration.

    Hi All, Im in the process of designing my first pond. I have the pond volume at 8500L. I have been looking at the easy pod air prices and they seem like a good filter, convenient for cleaning. I am slightly confused about moving beds and weather i will need to have one separate. I did look at the nexus 220 plus, but that s way out of my price range. i will have around 5 fish in this pond and its raised with a viewing window, so needs to be as clean as possible for that, as well as clean for my fish. It will have a bottom drain and be gravity fed.

    I suppose what i am asking from you is why a moving bed and any suggestions on other filer systems that are really easy to clean.

    Thanks



  2. #2
    Quote Originally Posted by Bengo View Post
    Hi All, Im in the process of designing my first pond. I have the pond volume at 8500L. I have been looking at the easy pod air prices and they seem like a good filter, convenient for cleaning. I am slightly confused about moving beds and weather i will need to have one separate. I did look at the nexus 220 plus, but that s way out of my price range. i will have around 5 fish in this pond and its raised with a viewing window, so needs to be as clean as possible for that, as well as clean for my fish. It will have a bottom drain and be gravity fed.

    I suppose what i am asking from you is why a moving bed and any suggestions on other filer systems that are really easy to clean.

    Thanks
    Well it's all about budget. I'm a similar size running a BD to an easypod to a tempest back via a single underwater return. I'm happy with performance but I'm right on the limit for bio filtration. The easypod is a great, easy to use mechanical filter but offers limited bio filtration. I'm going to add a moving bed in the near future to provide just that then in time upgrade the easypod to a drum.

    Sent from my SM-A125F using Tapatalk

  3. #3
    So what your saying is that i should plan in a moving bed now to increase bio filtration? I think it would be quite easy to make a moving bed right? Im presuming not much cleaning to do in a moving bed?

  4. #4
    Quote Originally Posted by Bengo View Post
    So what your saying is that i should plan in a moving bed now to increase bio filtration? I think it would be quite easy to make a moving bed right? Im presuming not much cleaning to do in a moving bed?
    Zero cleaning with a moving bed. I'd 100% recommend you leave space for one. A bakki shower might be another option. All depends on what you want to spend really.

    Sent from my SM-A125F using Tapatalk

  5. #5
    If no cleaning is required, i could probably make one easy enough. the biggest expense would be the media. i could utilizes the air pump from the easy pod air when not cleaning the pod. working in the same way to the nexus 220 plus. What do you think ?

  6. #6
    Go second hand,

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  8. #7
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by CobraKoi View Post
    Go second hand,
    agree with cobra.

    there are some real bargains to be had on FB and ebay, with pond closures.
    for what you pay for an easy pod brand new, you could get a second hand 220 or even a 320....

    8500 litres is not a bad size,
    but you are right on the edge of having a good sized koi pond by increasing volume by just a couple of thousand litres.

    my own rule of thumb for koi pond filtration is 100 litres of bio media per 1000 gallons

  9. #8
    I will keep my eyes open for one, if i can save a bit of money on this i will. Is a moving bed necessary on a pond of this size ? So much info out here and a lot of conflicting opinions. I wanted to keep is as simple as possible and easy to clean. I,m more than capable of make diy stuff, however the maintenance is something i really want to keep to a minimum. The nexus stuff looks like its the right fit. However, it really dosn't matter what it looks like because i'm the only one who will see it. unless i make a really impressive job of it and post it everywhere lol.

  10. #9
    Extreme Koi Member Rank = Adult Champion NickK-UK's Avatar
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    Personally I would design the pond with a gravity fed filter and an airlift system. I have a variable flow rate up to 36-40,000lph on 58 watts of power (no water pump just the air pump).
    14000l, my mutts: Chargoi (2010), Doitsu (2022), Tancho (2022), Kujaku (2022), Hi Utusri (2022)

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  12. #10
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Quote Originally Posted by Bengo View Post
    I will keep my eyes open for one, if i can save a bit of money on this i will. Is a moving bed necessary on a pond of this size ? So much info out here and a lot of conflicting opinions. I wanted to keep is as simple as possible and easy to clean. I,m more than capable of make diy stuff, however the maintenance is something i really want to keep to a minimum. The nexus stuff looks like its the right fit. However, it really dosn't matter what it looks like because i'm the only one who will see it. unless i make a really impressive job of it and post it everywhere lol.
    It's always better to have too much bio capacity than just the right amount. That way as you feed more and your fish grow they will eat more etc etc so you can soon run out of bio capacity. 600 litre or 1000 litre IBCs make good moving bed filters and you can fit loads of K1 or other media in them. I think I had over 150 litres of K1 in my 600 litre IBC and it boiled nicely. The guy I got it off who actually made it into a moving bed had over 200 litres of K1 in it and said it boiled nicely too.
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