Filter upgrade to indoor champions pond

With the high cost of electricity and also to minimize the maintenance, but to increase the effectiveness of the filters, I decided to make some changes to my filter system:-


I removed all the koi and blocked the bottom drains- I left the water running in the pond with the weirs directly connected to the protein skimmer and bakki shower. I then did the foundations for the filtration system.
The finished filter- 2 bottom drains to 1 Profidrum- thank you Mark from Koi Water Products!- and the 3rd bottom drain and 2 weirs to the other drum. From the drums the water goes through 3 filter chambers of Japanese matting- up/down system. The 4th chamber is the pump chamber where 2 x 55 00 liters an hour submersables push the water up and through 2 large stainless steel bakki showers filled with Momotaro Bakki House Media and then back to the pond. In addition I have a Speck pump pushing water through a sand filter and UV light and returning through my inside bakki shower with Ogata Crystal Bio.

One of the 3 Japanese mat filters

Pump chamber

Twin outside bakki showers

100 ton Champions pond- plenty of oxygen!

Koi Carp

Congratulations to Ernst Van Dyk for having his pond featured in the very popular British koi magazine Koi Carp.

As most of you know, Ernst is an extremely passionate koi keeper with the ability to grow a number of koi big- and still maintain the quality- in a relativly small pond. The cover of the magazine shows a very beautiful Sakai Sanke which we purchased as nisai in November 2012 and subsiquently sold to Ernst.

It’s great to see that Ernst is doing such a good job on the koi and I’m looking forward to see her progress.

Koi Carp cover


As nisai in November 2012


KHV Clear


Quarantining koi that have just flown in from Japan is extremely important.The koi from the different breeders are put in totally separate ponds.The initial goal is to give the tired and stressed fish some time to recover.After that the bumps and bruises must be treated and then the koi scraped and any parasites eradicated.Finally,we take gill swabs from 2 koi from each different breeder and these are sent in to MDS to be tested for KHV.48 hours later the results are e-mailed through:-


Beppu Fish Farm jumbo harvest


During my trip to Japan in November I blogged my visit to Beppu Fish Farm and,in particular,my experiencing their jumbo koi harvest.

With time being so limited I never had time to upload the videos I took of the koi being harvested.Please have a look at these links and I hope they give you some idea of the quality/size of the koi.All the koi were yonsai or older and minimum 75cm.

Koi being put into blue boxes and “craned” up the bank and onto a truck:-



It’s amazing how many koi one can safely load into a transport vat and they can comfortably stay there for many hours-they pump pure oxygen through a regulator and gently out of a ceramic air stone.


A great experience!

Sakai/Momotaru/Beppu arrival


Waiting for the koi to clear in Johannesburg- 2 x 1 ton and 2 x 750kg vats with mature pond water brought up from Durban-never mix salt with fresh water!Carry extra water for mixing-the vats must go home completely full so that the water does not “wash” around in the vat.

35 boxes! First seperate the different breeders.

Momotaro koi very well packed and marked.

Open and check koi so that we can unpack any that may not look strong first.Start with the Sakai koi-most valuable and travelled the furthest.

4 bags at a time in a mixing bowl-enough water so that they can swim around.

Open all the bags at the same time.

Add another 2 bags.

Drain off excess travel water,check ph and slowly mix in water from the vat-keep strong oxygen going.Do preliminary check on the koi and photograph any with bumps/bruises to treat later on.

Once the ph has stabilised,move the koi to the transport vat-either by hand or a sock net so that “dirty” water does not transfer across.

At the same time,start the Beppu koi-only 6 boxes so can do them all at the same time-separate mixing bowl/air ring,sock net,etc.

Same procedure.

Stabilise the ph with pond water.

Give them some time to acclimatise.

Carefully put in transport vat.

Once all the fish are safely loaded then we headed back to Durban using 12v Resun air pumps with a generator as a backup.

Once back in Durban 2/3rds of the vat is drained,the ph checked and water from the pond the koi are being put in pumped into the vat.After the koi have acclimatised then the fish are moved from the vat to the pond-separate ponds for different breeders.Above is the pond being used for the Sakai koi-90 tons.

Sakai koi happily settled in.

Momotaro QT pond-20 tons.

Beppu QT pond-20 tons.

Once this shipment was stabilised we arranged for the Ogata koi to be shipped:-

Much simpler with only one breeder.

30 boxes-same procedure.

All safely in QT.