I have been keeping these koi in a 150litre glass aquarium with 20% daily water changes. The filtration consists of :
1 eheim ecco external canister filter with sponge filter pads, clay media balls and alfa grog.
1 homemade internal filter. This filter works at about 3500 litres per hour and uses mainly ceramic balls, alfa grog, filter floss and carbon sponge pads. Picture below
And 1 homemade moving bed filter. This is power by an airstone and contains 1litre of K1 Kaldness filter media. This filter is very efficient at multiplying beneficial bacteria and keeps the water chemistry at a safe level. Picture below
Given the right nutrition and water quality these koi will grow extremely fast. It is important to feed them a varied diet at this age to ensure they are getting the right nutrition and vitamins. Avoid feeding them excessive protein. I feed these koi many different high quality sinking micro pellets, live/frozen daphnia, sinking bloodworm pellets, and brine-shrimp. If you have smaller koi you should feed them boiled egg yolk or brine shrimp or other smaller foods. Feed 3/4 times a day.
picture below of the koi 5 days later
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZeplCbmoyqiOjx1wGkhgJDaotRMnML4KnX1_ugVA7qbDv6B_tDH_gW_ffESdOJhDWyqrQF6pLDCHnyVbzZVhXzZdesQn3aOWYtvC-uT4Q0vEQjakg_gOOQ-RLQUzQVx_juQS-QG68gSU/s640/IMAG0014.jpg)
It is important to keep your water parameters in check. Ammonia and nitrite should read 0 on your test kits and you should keep your nitrate below 25 PPM. A UV filter would also be helpful as it would remove almost all potential parasites. Avoid over feeding as this will pollute the water. Siphon out any uneaten food, debris and waste daily so it does not rot. If you are using filter floss replace it every other day and clean any sponge filters when needed.
These koi are being kept in my cellar in a 150litre tank. A tank this size is too small to hold 100 koi for long this is why I am moving the larger koi to the outdoor pond when they reach a certain size threshold. Remember all koi are different, different genetics means different growth rates and coloration. I will update this blog as the koi grow to show their growth progress.
The first of the larger koi were added to the pond. These were around 3.5 inches long and settled in well. The larger koi initially showed a little aggression and chased them around but this later stopped. I added few fish every week or so during the last month. out of 80 fish in the pond 1 died to an unknown cause.
I would recommend you acclimate these koi for around 20+minutes especially if they were kept in sterile tanks.
It is also important to keep the pond parameters safe and consistent.
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Close up |
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Another batch going in. The smallest koi was in there for comparison. |
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Another load going in |
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close up |
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close up |
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The cat was staring at the fish again :D |
Thanks for reading I will try update the blog often :)
OF PRIMARK VOUCHERS
Nice setup.
ReplyDeleteGet in there Jun, that cat looks like it's telling you to fuck off so it can eat the fish.
ReplyDeleteGreat blog and nice setup. Keep us updated :)
ReplyDeleteThe cat looks like it wants to eat the fish lol
ReplyDeleteVery interesting and informative, keep us updated on the growth of the fish.
ReplyDeletehi ty for following i did follow you ;p
ReplyDeleteI want to see more about your fish >< And the cat I'm following you ^^ I have reaf your profile, you work with car?
ReplyDeleteHow many liters is the pond?
ReplyDeleteNice :D good luck on those fishes :D
ReplyDeleteWhat's the pump in the top of the coke bottle ?
ReplyDeleteAnd when you change 20% of the water each day , is it water straight out of the tap with treatment in to take the chlorine out , or do you prepare the water in advance ?
Thanks for the comments. The pond is about 4000litres. The pump on the bottle filter is a Eheim aquaball.
ReplyDeleteThe water is straight from the tap and is treated with pond chlorine remover for 10 minutes before going in.
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Lol great post
ReplyDeletePlease can I ask what factors can effect koi fry growth as my current koi fry do not appear to be growing much, if at all..
ReplyDeleteYou need ample of live foods to feed them and enough space so that they will grow fast, feed them with brine shrimp and dapnia
DeleteYou have nice assistant breeder a cat he he good work both of you :-)
ReplyDeleteHi there. Would I be able to keep 100 1" fry in a 380l pond in my shed? I have a 600lph foam filter on it and also a k1 bottle filter. Will I be able to keep them in there as I want to order some?? Thankyou
ReplyDeleteJust an FYI...ic you do feed hard boiled eggs this will pollute (very rapidly) your water quality if your filter is not an efficient one. (not you but someone else out there somewhere who happens upon this blog)
ReplyDeleteYour set up looks very good, and your Koi look great.
Just an FYI...ic you do feed hard boiled eggs this will pollute (very rapidly) your water quality if your filter is not an efficient one. (not you but someone else out there somewhere who happens upon this blog)
ReplyDeleteYour set up looks very good, and your Koi look great.