Painful Lesson Learnt - 1 Step Wrong with Potassium Permanganate = Losing your Koi Fish 

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Brought back bloody horrible memories of me doing pretty much the same and i recall the deathnail was adding the HP at the end. I'd become complacment and left the PP in one time out of many in which it's previously been 100% fine.... the absolute biggest takeaway is do not walk away from your pond when your treating with PP. Very brave of you to post the update so fresh after it happened ...i know when something goes wrong it can become a blur when your trying your best and emotionally the tank will be empty for some time. I made a vow to make sure I looked after my koi no matter and 2 years later i closed my pond but had karma as they went to a knowledgable buyer who had a great setup. You seem like a good lad, so i can only wish you the best ... hopefully you'll still with it and get quite a few jumbo tosai end of March 2023 and enjoy them really growing. BTW I know HP neutralises the PP treatment ...but if your fish are floating and absolutely on their last legs i'm still not sure if the best solution is to put those koi quickly into a seperate vat of water which could be aerated.....rather than throwing in HP which strips loads more oxygen from the water. ....and invariably will kill a koi that's at the very limit of hanging onto life.

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Honest and informative as usual. Awful news but I am so impressed by your reactions. My son lost many of his fish at a stroke when a pump emptied his koi pond in the middle of winter. Heartbreaking. We live and learn. Glad to see you are not giving up.

Oh mate. Only just found your channel. So sorry for you. This kind of thing happens up and down the country every week. Human mistakes are what they are - we are all human. You clearly care so much for your koi and obviously did all of the research. Don’t let it get you down…. Your lessons will help others - massive respect for your honesty and sharing this.❤

Thank you for sharing your story. It can definitely help others. I myself have killed all my fish. I went to bed and forgot to turn off my hose when refilling the pond. Woke up to a total loss. I feel your pain but respect you for sharing and helping others learn.

I’m so glad this is more up beat. I knew you can it!! You’re so lucky to have a supportive wife. Great summary of insights at the and that anybody can learn from in this wonderful hobby.

Good to see you back and looking more positive 👍 I know how you feel about Fred as I have an ochiba who swims upto me every time he sees me. If I put my hand in the pond then he sneaks up and nibbles it! Loves to play too as he swims round and round and in and out of my hand. Hope you find another just as friendly as every pond should have a Fred 😉👍

Thanks for the video mate. This will help the rest of us. Everybody makes errors and this give us a reminder of checks we all need to do. Good luck, thanks for the tips

I like the way you show the good and bad points of this hobby, hope you start to get over your loss very soon buddy 👍

Good update seeing where you went wrong that is very informative for all of us koi keepers again so sorry for the koi you lost. I’m new to keeping koi and having a koi channel and am slowly remembering to get my camera so I can get some content out. I get most of the footage from my cctv as I am trying to get to grips with talking to myself on camera. Take care.

That’s the spirit mate, smiling and cracking on! If I was closer to you I’d drop a couple of my fish off for ya as a gift 🙏🏻

Good to see you bouncing back mate 👍 , I’m looking forward to following your journey in the future ,happier times too come 👍

Glad to see you looking a bit more chipper, obviously you will still be kicking yourself but you are using this as a teaching aid to help others. It was good to see the video as it shows that you were doing everything correctly but for reasons it wasn't. Keep smiling and I'll look forward to the next video. James.

Good to see back, keep doing the vids as they really make me laugh, hope it’s all upwards from here on 👍🏻👍🏻👍🏻👍🏻👍🏻

Sorry about this Johnny. My only recommendation is to always have a known weight - can be anything like a stone or something that is similar to the weight you are dosing. Add this to your scale immediately before measuring chemicals to check it is on the correct settings, and then immediately remove and measure without changing settings. Good luck mate.

Glad you are looking better and more positive today It could happen to anyone of us . As a ref PP can also be nuked with dechlorinate I use this on my pond plants. Hope the rest of your fish are doing ok stay calm and relaxed you have a great channel so we want you to continue putting out content 🙏🐟🐟🐟🙏

In the past, British predecessors visited KOI breeders and brought back a lot of things they had seen and spread, but strong fungicides such as PP are used only by people with a certain level of experience or advanced skills, and are not common chemicals used by everyone in Japan, as they are in the UK. I think it's a bit too easy for too many people to use them. In Japan, it is recommended to use salt at key points during the season, or to implement a balanced annual schedule without frequent KOI purchases to avoid using such agents as much as possible.

i admire you johnny i havent a great pond onley 300. gal. with my koi. i learn a lot of your vidios. as some one who is still learning i look up to people who can be great on camera your it . and twisted koi. vince. sorry for your loss.keep going. johnney.👍👍👍

Positive update - reading the comments from your last post prove the support… on a plus side if you’re going to the koi show at the end of the month you’ll be like a kid in a candy store. Not to influence your videos but would make good content for a road trip. 👍

Gutted what happened Johnny. But the information and how well you’re taking it is amazing.

Nice one that must of been hard. Onwards and upwards 👍🏻

Hi Johnny, Once again, much respect to you for putting that video out, can’t have been easy for you. Good to see you appear to be coming to terms with it all now tho. This will all be a distant (bad) memory soon. I’m sure you are aware, but a strong PP dose will have knocked the biological side of your filtration back quite considerably, so would be a good idea to tread carefully with the feeding for a while and perhaps pour a bottle of one of the filter starts that are on the market. Stay positive mate 👍🏼

Johnny we know it was a error just stop beating your self up! And learn from your mistakes. You have got to take it on the chin and carry on and do the best for the koi you have left

Keep going Johny the amount of errors people make in the game are unreal. I once allowed someone to scrape my tanks and treat with chorlimine T... They started gasping doing back flips and died with seconds. Other mistakes I've done is a water change to hot shocked the system and lost alot of baby fry I grew from 3mm to 6-9 inches I took few years break. Just go slow Johny u have a nice pond koi keeping isn't easy as you know.

I have believed in pp up to this year when I have noticed it dries the skin out. Even to the point where algae can attach itself to the fish. I had fish floating around with a green shaggy coat. Hope you have a better final quarter to this year

fair play to you johnny. at least your showing people where it can wrong

And yes it does stain stuff .. usually goes a mucky brown because of the organics manufacturer works out to 1.5ppm so a low dose they have to extend the time so you use more pp so they make more money it also helps stop overdose by stating a lower amount

Very brave to put that Johnny, at least you see to be coming to terms with your honest mistake 👍 if you're interested I want to move on 3/4 50cm fish which you can have 👍👍👍

PP is a very harsh treatment on the koi n pond ecology too. Maybe in the future use FMG for costia n tric 👍🐟

So heartbreaking!! Don't beat yourself up too much. We all make mistakes. My fish have ulcers, beat myself up all the time

Wow so sorry! I use pp in my pond I was so worried about loosing fish !! 😢

So sorry for your fish X

Great video bud im glad your keeping your chin up 👍 And to answer your question it does stain but if you spill it on anything wack a bit of hydrogen peroxide on it and it just disappears 👍

Just had the same thing happen here mate. Lost all but a few. All my prize ones are gone.

Sorry for your loss. My question is what did the fish do to make you know there was a problem? Did they lay on the bottom and just die? Jumped up and out of the water? Come up and gasp for air? You left out the most important learning point. The reaction that let's you know there is a issue.

Get through to york I have loads of Japanese koi you can have I’m over stocked and would like them to go to a good home keep your chin up

On 11k litres I'd add 22g as a standard dose that's 2ppm I've dosed up to 4ppm and that I had to neutralise which would be the equivalent of 44g on your pond .. I'm not sure whats happened with your measurement because in oz you wouldn't have had enough in that bag ... the only thing I cam think is you've read 126g as 12.6 that would be possible with a bag of pp that size

Something I have done when weighing treatment is to double check against a known weight (normally a new bag of sugar or flour) just to make sure I have the right scale set on the scales ie 15g vs 150g.

Might sound daft Johnny, but have you tried rein acting weighing out the power to what looks like how much you used? I'm not totally convinced that it's purely down to yourself overdosing with PP. PP is usually used anywhere from 1.5ppm right up to 4ppm which by your calculations would be 44g at the top end. How warm is/was your pond water? could have been down to severe Oxygen depletion if the water was relatively warm before hand. Just a thought anyway buddy, absolutely devastated for you. Nice to see you being transparent about the situation and I hate to think how I would feel in your situation. 😥

May i ask, if its not too rude, how much does a pond like yours cost to build? Also, can a pond like yours withstand cold winters where the top freezes?

Live from indonesian mr.jhon🤝🤝🤝👍👍👍

What can I say mate , s@!£ happens , but I’m not going to never mind/it happens/ not your fault etc , just respect for showing it , but some key points to consider are , you have done this a few times before so if the dose was to much , I would of thought something would of clicked when you saw the amount , so it may not of been the over dose , it could of been a warm muggy night and the pond was already depleted of oxygen from its normal level , Never walk away from the pond even if you have somebody watching unless they know what to do, HP is the best at neutralising pp and adding o2 to the water BUT you don’t need to add it slowly in an emergency just get the whole dose in , even if it wasn’t enough to do the job fully it could of been enough so that it gave you more time to get the koi out , But a great alternative to HP is sodium thiosulphate, or dechlorinator, and you can not over dose with that and it’s cheap as chips to buy , So chin up and crack on Johnny boy 👍👍😎😎

2 times man. I'm sorry you lost your fish but get digital powder scales that go down like 3 points after the decimal.

that tray u measured on could of mis read i would think some sort of a cup with a less diameter would be more accurate ..saying that it could be water temp high and low oxegen

I use PP every 4 days to clarify and oxidize water. PP is great for water if used correctly. It kills many organic microbes and things in the water. Therefore it also helps increase oxygen for Koi. I treat with a high amount of PP as well. I use dilution of 4ppm every 4 days, so that's 2oz or 56gram. Just make sure you know what you're doing. If you mix regularly, you would know how much is too much. I probably should get a 2nd scale just to be safe though. $20 for a scale can save thousands of dollars. I also have measurement scoops.

Still gutted for you Johnny, but glad to see you bouncing back slowly 👍😀 I lost my favourite Kohaku who was such a character in the pond and my first fish. Always gutting when you look back through your phone photos and videos and see how awesome they were. Anyways stay strong man, onwards and upwards from here for you 👍😀

Analogue scales ??.

Hi mate I hate using that treatment I’ve done the same thing as you in the past it’s so so sad feeling for you and your family

JOHNNY was there a lot of trich in your pond ? one or two isnt life threatening it might have been better to wait until the weekend when you had more time, it might be as well to measure the amount now put it in a container so that you have a good idea what you need. try and put it behind you now and crack on when i lose fish i always feel guilty after what could i have done to prevent it.

Kilo of sodium thiosulphate about 15 quid and will neutralise as much pp as you could ever chuck at it .. and you can't overdose it.. doesn't go out of date either 👍

Give me a call mate, I have somthing for you

That was hard to watch mate

A safer way to do pp is to use nt labs permanganate it's in solution no need for scales just a measuring jug do it on my site

So 😔 sad. It was an accident x