Koi keepers in 2020, whether new to the hobby, building a new pond, or renovating an existing one, have probably never had it so good in terms of the range of quality filtration products available to them.  In fact, I think it’s fair to say, that in many respects Koi keepers have never had it so good in terms of all kinds of products available to them, be it pumps, food, medication, etc.

I’ve written about my experiences with the Automatic EazyPod previously in this March 2018 review – http://nishikigoi.life/2018/03/15/evolution-aqua-eazypod-automatic-review/.  That was based on 6 months overwinter usage.  Almost 2 years on the Automatic Eazypod hasn’t missed a beat, and has handled far heavier than the prescribed stocking and feeding rates of Evolution Aqua, coping with up to 250g of food per day.  One downside of the Automatic Eazypod is the fact that it is only available in pump fed configuration, which obviously gives rise to the various issues of a pump fed filtration system.  Prior to the Eazypod we have a small Manor Koi vortex installed which is fed by bottom drain, and a submersible varispeed pump sits at the surface of that.  On an indoor system without the worries of leaves and blanketweed then it would be possible to connect the pump direct to the bottom drain feed without concern.  Indeed outside, if you are happy to be cleaning pump strainer baskets, you could have the pump in the pond.  As I say, this raises the various other negatives of pump fed filters as opposed to being negative comments about the EazyPod itself.

Pump Fed EazyPod Automatic

Pump Fed EazyPod Automatic

EazyPod Automatic Control Box

EazyPod Automatic Control Box

I’m sufficiently impressed with the EazyPod Automatic that I’m planning to install 4 on growing ponds to be built this spring, they tick all the boxes in terms of performance, footprint, ease of maintenance, flexible installation and price.  More of that project as it progresses in the spring.

Twelve months ago I was in the process of building the Koi house which was used for spawning and raising of the subsequent fry in 2019  and to date.  Confronted with a range of filtration options, including the EazyPod, I elected for the Nexus 220 Automatic as explained in this post from last year – http://nishikigoi.life/2019/01/10/new_pond_build/.

Koi House under construction

Koi House under construction

My experience of the Nexus 220 Automatic, in the almost 12 months it has been running, is really nothing but positive.  The Nexus itself has of course been on the market over 10 years now, there are probably thousands installed around the world.  They work, there is no question.  I was caught out a little with the time it took to mature, but that is hardly the fault of the filter, more my impatience and timing.  My Nexus 220 runs with the maximum volume of 150 litres of K1 media in the biological section.  At the time the extra 100 litres was added some questioned the logic and reason for doing so.  Personally I could see no reason not to maximise the available biological surface area, and still cannot based on the performance.

K1 media inside Nexus 220

K1 media inside Nexus 220

Mature K1 after 12 months running

Mature K1 after 12 months running

Perhaps the more interesting part is the automatic unit, still relatively new having been introduced by Evolution Aqua in mid 2016.  The Automatic EazyPod had given me confidence that the unit would be robust and reliable in terms of its performance.  This was backed up by speaking to various users including Tim Waddington at Quality Nishikigoi who was a big fan and vouched for their reliability.  The Automatic Nexus, as with the EazyPod, can be set to clean on a timed basis, or there is a manual clean button.  In 12 months of running the Automatic Nexus clean cycle has now run hundreds of times, whether automatically on timer or manually, and has never skipped a beat, everything opening and closing exactly as intended.  I have read horror stories by misinformed and presumably non users about the drain valve remaining open and emptying the pond.  This is impossible because it won’t turn the pump back on without the valve closing first.  The only additional maintenance I’ve done on the system is, as with the EazyPod Automatic, an occasional hose down of the waste chamber to remove any stubborn dirt that doesn’t drain to waste.


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Automatic Nexus Cleaning System

Automatic Nexus Cleaning System

 

My conclusion is simple, I would highly recommend both the EazyPod Automatic, and the Nexus 220 Automatic.  Of course, the larger Nexus 330 Automatic is the same simply larger.  You can find out more about the complete Evolution Aqua range at https://evolutionaqua.com/.


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