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  1. #1

    enough filtration?

    So I’m planning my new larger pond and built a shower filter for the larger volume of water and my current fish growth it’s 3 tiers with alfagrog and three grades of foam il attach pics... my question is will this along side my oase biosmart filter be enough to support 1000 gallon pond with 8 koi around the 12 -15 inch and 6 goldfish about 6”. I dont want to do the new pond and have issues straight away, I do 10 percent water changes every week and clean filter every two weeks, so keeping within that maintenance would this be enough filtration for the job! IMG_8695.JPGIMG_8697.JPGIMG_8694.JPGIMG_8693.JPGIMG_8698.JPG


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  2. #2
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    I think with the way you seem to be getting into the Koi hobby that you'll regret building a 1000 gallon pond within a year once you see the growth potential of your Koi.

    1000 gallons will soon be overcrowded with 8 Koi once they start really stretching.

    Is there any possibility you can go bigger, say 2000 gallons?

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  4. #3

    enough filtration?

    Lol that’s strange I was just reading your sleeper pond extension. I havnt got the biggest garden but I think I will max it out at just over 1230 gallons I attached the pond volume calculator. I’m going to be making it out of 4x4 timber posts (as I have these on the current pond only 6 months old) and plywood sheet attached on the inside to add strength and wall thickness. With 12mm rebar through the timber going into the ground to reinforce. I would like to do a bottom drain as been advised to and seen on videos they are the way forward but I don’t know to much about them yet as currently just using pump to gravity filter. My koi at present are only small ranging 4” to 8” and I’m loving the hobby and watching them grow! Bought my first house in April, by May I had my little pond put in enough filtration? IMG_8718.JPG


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    Last edited by charco123; 30-09-2019 at 11:51 PM.

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  6. #4
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    If you can get the pond depth down to 160cm that would be perfect depth for Koi, will help in keeping the pond warm in winter, will help with oxygenation, and takes your volume up to 1600 gallons without increasing the footprint.

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  8. #5
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Bottom drain is definitely the best thing you can fit to a new pond.

    There isn't a lot to learn about, just involves some digging and some thought about the location of your filter which will need to be a gravity fed filter instead of pump fed.

    We can all advise you on pipework and getting it set up but you'll obviously need to decide on the right filter. The current filtration you have may work ok at the moment but you'd be better off in the long run investing in something more efficient. I think if you went for 1600 gallons a 2nd hand Nexus 200 / 220 would do the job well for that size if you have the space for it.

    If you have the budget then a drum filter is the ultimate option.

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  10. #6
    Evening mate hope all is well, I was just in the garden with the girlfriend discussing it and she even said “just go bigger if it’s what you enjoy do it properly” Only thing I would say is I havnt got masses Of room so I may go for a gravity return filter! As this can be placed on the ledge/shelf of the pond itself to save space. I’m thinking of the oase biosmart 24000 il attach a pic see what you think, I went to koi logic today to view and also looked at another type of filter. Il attach a pic of the other filter they picked as alternative. Cheers mate enough filtration?IMG_8719.JPGIMG_8733.JPG


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  11. #7
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Personally I don't like filters like that. Even looked at similar filters when I first kept koi but glad I didn't get one.

    Maybe they suit some circumstances but I struggle to believe it will be adequate in the long term.

    You could buy a used Nexus for the same or less money, just need a vehicle big enough to pick it up.

    A Nexus doesn't use sponges and cleaning it is very easy without getting your hands wet. It should also keep a pond your size crystal clear most if not all year round.

    You may find the Oase does a good job but I'm not convinced personally.

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  13. #8
    Thanks for the response mate I’m after people views to put me on the right track so I appreciate your opinion, with the nexus am I right in thinking it’s purley biological ? So i would require a mechanical filter before it? If so it may just take up to much room mate sadly, I need a compact unit if I’m maxing out the pond size. Kind of why i mentioned that filter as it would sit nicley on ledge of pond and then have my shower filter also... but I am aware everyone into there koi seem to have the nexus or easy pod but I have heard bad reviews on the easy pod! So kind of up in the air with it all! But I would like a little room left in my garden haha cheers mate


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  15. #9
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Agree with Rs mate,the nexus is both mechanical and biological and a good filter.
    They can be picked up quite cheaply now and would do a good job for you.
    Easy to set up and clean as well.
    Or get a drum for 1k.
    John

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  17. #10
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    i agree with john and RS. nexus is the best option. and you can add a draco drum inside it further down the line. and that would nt take up anymore room. as it goes inside the nexus.
    ask yourself this. what filters have been used for the last 20 years and why. untill the rotory drum came out the majority had nexus. see how many ponds had them filters you show or have been told to use.
    i bet if you did a survey not many people have them on there ponds. or have had them. plus your shower. that is adaquate. on your pond volume. if you struggling for room. keep it same size. but go deeper or higher for more water volume. i went 7 foot deep with 6 feet of water. to give me the gallonage. where there is a will there is a way. good luck with what you decide. remember this. the garden centre will sell you anything. so they can get the sale. and money in the till. best advice is on here mate, we have learnt the hard way. bottom drain is a must
    fred

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  19. #11
    Cheers guys well you have changed my mind and I’m now going to go with one of the aqua products, either nexus 220 or one of the eazy pods just on there website now reading up as these are quiet a few different add ons etc. Thanks again for the advice I will defiantly be geting a filter like you all have mentioned enough filtration? il let u no how I get on when Iv purchased and built enough filtration?


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  21. #12
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Nexus over pod mate bigger footprint but bigger bio and drum option fo later .

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    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  23. #13
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    There's a few used Nexus 200's on eBay for bidding from around £275 plus there's a Nexus 300 complete with Draco Drum installed up for £1100 (which is less than the cost of the Drum new). But the 300 is a bigger beast than it looks in the pics and overkill for your size pond.

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  25. #14
    Quote Originally Posted by Ajm View Post
    Nexus over pod mate bigger footprint but bigger bio and drum option fo later .

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    Yeah but I’m looking at the pods and they are slightly smaller and will do 2000gallons. And are cheaper! The pond I’m doing is going to be 1230gallons. Why are u suggesting the nexus 220 over the pod? All I’m going by is what I’m reading on the site and with that info it look like the pod is a better option for what i need but I don’t no anything other than what I’m reading, apart from the automatic cleaning option on the pods ain’t worth getting! Thanks mate


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  27. #15
    Quote Originally Posted by RS2OOO View Post
    There's a few used Nexus 200's on eBay for bidding from around £275 plus there's a Nexus 300 complete with Draco Drum installed up for £1100 (which is less than the cost of the Drum new). But the 300 is a bigger beast than it looks in the pics and overkill for your size pond.
    Cheers mate i just had a look. Is the 200 a older model or something? But does the same job as the 220 nexus. Ta mate


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  29. #16
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Charco, we dont want to tell you how to spend your cash but we can advise you.
    Take no heed on the write ups on the pod etc as they are overkill.
    Most of us have been there and made mistakes and we want to help you in not going down that road.
    Ok you want a small filter as space is an issue,but the pod isn't the answer for you.
    If money is ok a drum is a small space,or a 200 to 220 nexus.
    We are trying to help you but if you want to go off and get your own then so be it.
    Yes the 200 is an older model than the 220 but I have only ever had the 300 maybe others can advise.
    John

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  31. #17
    Hello mate, yeah I’m seriously considering the nexus 220 but I just want to know why people are trumping it over the eazy pod! As they seem so similar, is it the pods aren’t that good? Bad reviews? Or are the specs of 2000gallons a little exaggerated? I’m maxing out on the space I’m using in the garden hence why I’m trying to save space if possible going for a smaller unit. I’m happy to commit to the nexus but I would really like to no why the pod is a no go. Cheers again


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  33. #18
    Extreme Koi Member Rank = Gosai RudeDogg1's Avatar
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    From what I’ve read the pod doesn’t perform as well as the sales spec suggests and needs a lot of cleaning

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  35. #19
    Extreme Koi Member Rank = Gosai RudeDogg1's Avatar
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    Also only has media in the middle (bio) unlike the nexus

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  37. #20
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    I've never had a pod but read a lot about them getting clogged with dirt very quickly in summer, i.e daily, and prone struggling with ammonia readings due to the limited volume of bio.

    The Nexus is a big old lump if you have limited space so it could cause you a problem there, but if you build a pit for it there are ways of hiding it with plants and shrubs etc.

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