Enjoying your channel. Really not looking to troll you here, just have an appropriate discussion. Will say that I am impressed by the work, although some of the experiments appear questionable. The volume of media, for instance, in the video on k3 vs k2 vs bio ball, see awfully small to represent a valid sample, and the fluidization appears non-existent. In this video, the volume of media appears insignificant to come up with valid ammonia reduction readings. But what do I know? Considering the size of your pond (mine is similar ~1500 gal), the volume of media that your charts arrive at seems awfully high, and certainly greater than what you actually have. Don't you have about 10-11 koi? They appear to have grown since this video, but I am curious what your actual K1/k3 media volume is. It would appear from your charts that you needed a minimum of 50 gal, and currently given what I am guessing at as yo the size of your fish, perhaps 160 gal of media? That's a lot of media. I have come up with a design (similar to the 3 barrel design with k1 media popular on the DIY side) that incorporates marginal or water plants in the top to address nitrates and get them physically out of my small pond, but keep them in the pond water. If you are interest, message me separately and I can send you pics. Each "planter" holds approx 3-6 gal of k1 media, with sufficient room for fluidization and the internal piping etc. On another channel, Koi Breeding is not a Passion... I have taken his measurements/conclusions and calculated some conversions. His numbers are radically less than yours: Koi Length and approximate Weight feeding 3% I rounded in the conversions One liter of K1 media can handle up to 5 grams of food per day. The amount of K1 media you need for your aquarium depends on the number of fish and the size of the aquarium. A general rule of thumb is to use one liter of K1 media for every 100 liters of water. Here are some other things to know about K1 media: K1 media can be placed in different types of filtration systems because it is small enough. 50 liters of K1 media can handle up to 250 grams of food per day. A 25 liter bag of K1 media can handle up to 125 grams of food per day. 1 liter/5grams of food/day 3.785 liters/gallon Each planter filter has ~4 gallons k1 x 3.785 liters = 15.14 gallons But it does show that as the koi get bigger over 40cm every 10cm in length they are doubling there food intake! 6in = 60 grams/2.1 ounces so if you had 10 koi @6in koi total 600gm/ 21 oz X 3% = 18 grams/.64 oz per day 3.6 liter (1 gal) of k1 8in = 125 grams/4.4 oz so if you had 10 koi @8in koi total 1250gm/44 oz X 3% = 37.5 grams/1.32 oz per day 7.5 liter (2 gal) k1 12in = 350 grams/12.35 oz so if you had 10 koi @12in koi total 3500gm/123oz X 3% = 105 grams/3.704 oz per day 21 liter k1 (5.5 gal) (1.4 planters) 16in =1000 grams/35.2oz so if you had 10 koi @16in koi total 10000gm/352.7oz X 3% = 300 grams/10.582oz per day 60 liter k1 (15.85 gal) (3.96 planters) 7 koi =2.8 planters 20in = 2000 grams/70.5oz so if you had 10 koi @20in koi total 20000gm/705oz X 3% = 600 grams/21.2oz per day 120 liter k1 (31.7 gal) (7.9 planters) 7 koi = 5.53 planters 24in = 4000 grams/141oz so if you had 10 koi @24in koi total 40000gm/1410oz X 3% = 1200grams/42.3oz per day 240 liter k1 (63.4 gal) (15.85 planters) 7 koi = 11 planters Curious as to your thoughts. Thank you for all your time and efforts. Have a wonderful holiday season. Seth
@GrantGabato2 ай бұрын
Hello! I bought my first koi last May this year she was 3 inches long, and just after 5 months, she's now 11 inches long and very bulky! I wonder if that's normal growth rate for koi. I did not expect her to grow that fast because she was locally bred. In fact, they labeled her grade A at the fish store, and she doesn't even look great like a good quality one. So I wonder if her fast growth is something special or just normal. Thanks!
@thekoilab3944Ай бұрын
I wonder if it is a chagoi - tend to be plain colours but grow much bigger than most koi because they are closer to wild carp in their genetics? What five learned is that different individual fish grow at completely different rates even in identical situations. Sounds like it’s going well though so keep up the good work!
@nikp70362 ай бұрын
Do you still have the same microscope ?
@thekoilab39442 ай бұрын
Yes why do you ask?
@edhaworth81514 ай бұрын
A mature filter media is clearly best but obviously not a ‘rescue’ option
@craigphillips93835 ай бұрын
How big is your main pond please? I have a 2000 litre and the guy at my local koicentre said 7 is the max capacity for a 2000litre pond but his main pond is smaller than my pond and theres about 50 in there, theres more fish than water, and in the vats
@thekoilab39445 ай бұрын
My main pond is 5000 litres and there’s 17 medium sized fish in there. Ranging between 30 and 40 cm. Roughly the same as your 7 in 2000. In mine there’s too many really but in my view it comes down to three main factors: 1. maintaining carbonate levels - smaller pond relative to weight of fish means less absolute level of CO3 buffer so you need to be watching carbonate hardness closely in summer and must use a chalk buffer or do massive water changes to maintain it. 2. The filter needs to be big enough for the fish not the pond. This means when over stocked your filter needs to be big relative to the size of pond and plenty of circulation in the pond using air. 3. Diseases will spread more quickly, and as it is outdoors you can’t stop diseases being introduced, so from April you need to vigilant and treating promptly. I get multiple breakouts every year. Hope that’s helpful, I’m sure there are additional things I’ve missed. I think your koi centre is giving you great advice
@clashingrival56976 ай бұрын
that is real expensive and time consuming experiment. underrated channel. thanks so much!
@kevinwhite10776 ай бұрын
nice video keep them coming
@Igor-q3f7 ай бұрын
How does hel x 13 compare to k1?
@siras2Ай бұрын
I'd be interested in this too please
@droneon018 ай бұрын
Don't really need to sedate to do a simple scrape surely. Apart from that I love your content, so helpful
@thekoilab39448 ай бұрын
Thanks. I’ve found that in order to get a decent sample the sharp edge of the slide works well but given how fish thrash around I’d much prefer to sedate a bit to avoid them hurting themselves on it. However I think what you are suggesting would make it a lot quicker and means you can do it at lower temperatures but I think then it’s a question of skill!
@Jdubswateringhole9 ай бұрын
Great video. I am looking to make my first fluidized filter on a 550 gallon cichlid tank. This is the exact kinda of data I have been looking for.
@Aanand3911 ай бұрын
Excellent.. thank you..
@koiandpredatorsuk11 ай бұрын
Hi. Just came across your channel. Very helpful video thank you. iam thinking of using K3 on my indoor predator pond iam just about to start building. 👍👌 + New subscriber 👍
@hennessey41511 ай бұрын
Great video, Thank you!
@jasmyshahdi527211 ай бұрын
Tq so much sir 👍🏻👍🏻👍🏻
@FARMOORKOI Жыл бұрын
Great vid of through the seasons, thank you for sharing, happy new year, best wishes, Tony, Farmoor Koi.😀
@AMBuilds Жыл бұрын
I enjoy your Koi lab videos and chapeau to your efforts to bring proper practical science into the arena of koi keeping. I wonder why you don't consider adding food grade bicarbonate of soda to help with KH. Many of us in the frozen North have extremely soft water at KH 1-2 and so water changes / run through actually degrade the KH status of the pond, rather than increasing it. At the moment, I am using 500g per week to balance 240g food daily at 13.5C water. Bought in a 25kg box, it is economical and I just tip the cups into my airlifts and let the bubbles break it up and dissolve it.
@thekoilab3944 Жыл бұрын
It’s a good suggestion and I did use bicarbonate of soda in one of my experiments keeping my filter going during the winter in a barrel in the garage, although not sure I mentioned it in the video. It does dissolve more easily than calcium carbonate, I wonder if there are any drawbacks as it seems less used here in the UK? I was a bit concerned about a build up of sodium in the water compared to calcium. Thanks for sharing
@Nguyen12121 Жыл бұрын
can you do a test between traditional sponge filter vs K1?
@davisn456 Жыл бұрын
I've never seen a comparison like that before. It's really quite fascinating to see the biology of water working like that. It both shows the importance of taking care of your biological filter, but also the role that an air pump/bubbler plays in all of this as well. Excellent work!
@gsctrp8692 Жыл бұрын
Thank you
@eiriks6005 Жыл бұрын
Hi Thanks for the effort. A suggestion for a experiment. If you put crushed oystershells in exess of what would bee a reasonable amount. Would this drive up KH and or pH (or other unforseen effect) or would the amount of disolving correlate to the amount of CO2 etc beeing produced. Would there be any negative effects of having a surplus amount of crushed oystershells in the water. Eirik
@thekoilab3944 Жыл бұрын
From a quick google it looks like 9-10 is the equilibrium for calcium carbonate in excess which would be too high for koi. However I would expect that a pond would remain some way off this level with a lower pH even if there’s plenty of oyster shells as I don’t think oyster shells are particularly fast at offering up their calcium carbonate due to a lower surface area compared to powdered chalk. I know from previous experiments that you can get the KH to over 20 degrees with an excess of chalk powder, I didn’t measure the pH though. You’d need a massive dose to do this in a pond though, which I wouldn’t advise!
@eiriks6005 Жыл бұрын
Yes but there will be benneficial to stay on the positive side of kh buffering. The unansvered question is. Will there be exess buffering with a large amount of crushed oystershells. I have put in a 10kg bag of crushed shells in 40-50m3 and i messured 1 degree of kh. Eirik
@AMBuilds Жыл бұрын
Due to a mistaken choice of cat litter (do not use Catsan) in some anoxic baskets I was using, the lime caused a huge increase in GH and pH. It topped out at 36GH before I took them out and remade them with Moler Clay (Kittyfriend). The fish were unconcerned by that and by me doing a daily run through of 10% until I was down at GH10 and no longer adding vinegar to maintain a decent pH. I have lots of Oyster Shells in the side ponds in my system. They don't dissolve very much in my water which sits just short of PH8 but they do provide some more growing space for beneficial bacteria and if I fail to notice a deteriorating KH and falling pH, they will dissolve more quickly and hopefully give me a better chance of avoiding a catastrophe.
@shaunleonard814610 ай бұрын
Hi. What about trickle in trickle out?
@lawrencemcnally3164 Жыл бұрын
Warm water for virkon
@richardportelli1983 Жыл бұрын
Sounds like you need to set up a dosing system.
@Nguyen12121 Жыл бұрын
Love the tests and documentation. I've been looking for something like this. Can you do a test for Nitrate? Which media, if any, removes nitrates?
@thekoilab3944 Жыл бұрын
It’s a great question. I’ve really struggled to think of any experiment to do with nitrates as the test kits are very inaccurate and quite temperamental in my experience. Also I’ve not tended to have any issue with nitrates as plants, algae and water changes seem to keep it in check. I’ve found maintaining sufficient KH to be the more pressing constraint meaning I do plenty of water changes in managing that.
@rumarush Жыл бұрын
Fantastic bro, you are a star ❤
@observer8838 Жыл бұрын
Excellent research - really helpful. Thanks for sharing this.
@alwhshei Жыл бұрын
Thanks great video
@alwhshei Жыл бұрын
Thank you, great video
@alwhshei Жыл бұрын
A channel worth following, thank you.
@thushanthalokusooriya4645 Жыл бұрын
Nice video. To the point. Keep up with the good work 👍
@MrSmithy63 Жыл бұрын
Nice koi
@keepingitkoi Жыл бұрын
Nice one 👍
@LeTwistedOne Жыл бұрын
Cracking video dude 🧁👍👍👍
@myangl6 Жыл бұрын
hello sir how much k1 i need to put in 1000 liter pond ( by kg please)
@moretoliving2236 Жыл бұрын
Thank you for taking time to make this video. Really appreciate it.
@Chequr_Prostate2 жыл бұрын
I can’t see Tric on x40 it’s just a blare even after trying to focus. See it clearly though on x 100.
@graemeross69702 жыл бұрын
Are these level of ammonia or KO which is diluted?
@thekoilab39442 жыл бұрын
Hi - not sure what you mean by KO? Did you mean KH? Having learned a bit since doing this experiment I’m now inclined to think the reason the higher ammonia levels didn’t work as fast was because the KH was all used up. I’d need to re run the experiment with a load of calcium buffer but my gut feel is that this would probably mean higher levels of ammonia could be used without issues.
@philipbutler66082 жыл бұрын
I use septic tank enzymes and bacteria in my pond. I use it all Summer long too. Especially after water changes.
@thekoilab39442 жыл бұрын
That sounds really interesting. What specific product do you use? I might test it but it would be essential to know the exact product to know it’s safe with fish! Thanks
@Chequr_Prostate2 жыл бұрын
So I wonder if you should heat your media/containers rather than your pond, although you still have cold water passing through the media so I’m not sure how effective that would be.
@thekoilab39442 жыл бұрын
It’s an interesting idea - you could either isolate it from the pond and heat it which is effectively what I did, or have some sort of heat exchanger to cool the water down as it leaves the filter, and heat the water up as it enters- but that would pretty elaborate!
@MrSmithy632 жыл бұрын
Great video , very useful , theres been a lot of questions on this in the koi social media world , now we now
@pullbackbaby2 жыл бұрын
Do you think it is possible to jumpstart your koi fish aquarium media by using it in an aquarium first? I'm just wondering if you could get the media started in a heated aquarium and then transfer it slowly into pond filtration for Koi. 😊
@thekoilab39442 жыл бұрын
Yes definitely but you need to bear in mind a couple of key things. Whilst you will speed up the growth of the bacteria in the heated aquarium, once they are cooled down in the pond they will work much more slowly than they did on the aquarium so it will still take a long time to build up the necessary level of bacteria ready for the pond - but it will certainly help, particularly over winter where they would otherwise be dormant or dying back. You will need to do water changes or alternatively regularly add calcium carbonate or sodium bicarbonate to give the bacteria enough carbonate to feed their growth as well as ammonia. From my own experience I’d say you’d need grow them to for about 2-3 months to be making a noticeable impact. I found even having kept my established bacteria warm and fed over winter I still had a nitrite pickup in May time - koi eat obscene amounts of food!
@keepingitkoi2 жыл бұрын
Great growth bud well done 👍
@davidporat77572 жыл бұрын
Thanks for your videos and your time Are you familiar with the anoxic filtration ? And if you do?What do you think about the anoxic system Thanks David
@thekoilab39442 жыл бұрын
Hi - I’ve read about the concept but haven’t put into practice. Sounds interesting though. May be one for a future experiment!
@RamseysDIYKoiPond2 жыл бұрын
Very intresting video thanks for sharing 👍🐟
@K.W.P.R2 жыл бұрын
You use boiling water to dissolve verkon then add pond water to it and let it cool
@LeTwistedOne2 жыл бұрын
Cracking video 🧁💯👌👍👍👍
@LaurenceFrost2 жыл бұрын
Excellent video. These types of experiments do help to build up a picture exactly what these products do. I really like your approach.
@OxAintAFanxO2 жыл бұрын
It's definitely carbonate depletion. Nitrate can be built up in very high concentration before it's dangerous for fish. I remember I used to struggle with nitrite due to carbonate depletion, so now I add baking soba every 2 days or so. I know high concentration of nitrate also affect my koi feeding behavior so that's also another safety switch for nitrate. Another note with adding buffer is the pH will only stay at 8.3 if there is calcium in the water too, so you have to do water change to replace the minerals, too.
@Kugadream552 жыл бұрын
just subscribed
@benjamintan73872 жыл бұрын
Hi , can you count how much k3 i needed if daily feed is 8kg food and 2.8kg protein
@thekoilab39442 жыл бұрын
Hi - that’s a pretty big operation you’ve got going on there. At face value the experiment I ran would suggest 11,000 litres of k3 - which sounds excessive. However something that I’ve subsequently been working on is the scope for food to be incorporated into the fish and so food consumed doesn’t equal waste produced. From my wider reading this can be as little as 10% in high growth species such as salmon. So if you are feeding at that rate and the fish are all growing strongly, as opposed to simply maintaining their size, the amount of k3 needed could be as little as 1,100litres. Would need to be very heavily arrested too. As it sounds like a professional arrangement you have I would suggest going with k1 which is twice as effective per volume and also consider using other high surface media such as siporax along side.
@markred32672 жыл бұрын
my tosai grow 4-5cm in a month..feed with high protein
@thekoilab39442 жыл бұрын
Interestingly the kujaku, which grew about 2cm has continued to grow at a pace since I put it in the main pond, at least 2cm per month since and the temp has been 18/19. I can imagine that Increasing temp and pure growth food could deliver 4-5cms. Good work on getting that sort of success with you fish. Thanks