Our Testimonials

I can’t recommend dean and the koi clinic enough! Such a great knowledge of koi care and problem solving, I’m new to owning koi and had a few problems with my pond and a couple of koi showing marks, and knew there was something wrong, I gave dean a ring and he came out after travelling a long distance to get to us! Spent 3 hours thoroughly checking our water levels and showing us step by step how to scrape and treat the koi with the marks, and what to do to keep getting them better and also helped us find the problem! (Even carried on regardless of the horrible weather). We also received an in depth email listing everything he advises to get to help us keep our koi at the top of their health!
All I can say is thank you dean for all your help! Worth every single penny, I can’t recommend you enough will be definitely contacting you if future problems arise.

Danny, Lincoln

Spoke to Deano regarding a parasite issue. He came to see me within 48 hours providing a total health check on my set up, water, and fish. Advice given on how to treat and tweak my approach moving forward. 100% recommend getting in touch if you have any concerns, queries or need reassurance. Top job – top man – thank you

Matt, Leeds

Best decision I have ever made for my pond getting Dean out. Highly recommend. Finally got to the bottom of my parasite issue and have had clear guidance on what to do as well as learning a tonne, from tips when scraping to where to focus when water testing. Will definitely be using Koi Clinic again moving forward.

Andy, York

Absolutely brilliant knowledge and really supportive, I cannot recommend Dean highly enough.

Alzo, Carnforth

Top man, I recommend

Mick, Chesterfield

What a fantastic service! I was in something of a panic having lost a fish which had died quite suddenly with another showing similar symptoms. I sent out an SOS to the Koi Clinic and Dean got in touch within a few hours. He was at my house (some 3 hours drive from where he’s based) two days later at 0830 in the morning and he had the problem sorted by lunchtime! He came with all his own equipment in order to test for every possible contaminent from Ammonia to Zinc and every parasite from Argulus to Whitespot (I’m not sure if there are any parasites beginning with X, Y or Z but I’m sure Dean would’ve tested for them in any event). His knowledge and expertise is superb and he shares this with you freely and without making you feel like an idiot (I’m very capable of doing that all by myself). Without Dean’s help I think I would have spent an enormous amount of time, effort and money trying to get to the bottom of what was going on, not succeeding and probably losing my entire stock of fish in the process. The Koi Clinic is worth every penny it costs you and then some – their charges are superb value!! If you have a problem with your pond or your fish you will not get a better value service anywhere else. Thanks again Dean 🙂

Mick, Fleetwood

Excellent service with Dean’s knowledge and expertise also for a short notice appointment, such a genuine guy and well worth the money, I’ve learnt alot. If in doubt give Dean a shout. 😁 👍

Jason, Peterborough

Great advice from dean and worth every penny for the piece of mind,explained everything as he was going on rather than at the end where it could be confusing,would definatley use again if needed and would defonatley reccomend,great advice on what else can be done to resolve little problems.thanks again

Andrew, Blyth

Brilliant service! Very helpful and Dean definitely knows his stuff! It’s so worrying when a fish gets sick 😰 but Dean helped me stay calm and reassured 👍🏻😀. He visited our pond, observed the fish, inspected the water, took scrapes from a fish, sedated the sick fish and treated it, then started us off with treating the pond water too and left us with great instructions to complete the pond treatment cycle. He also taught us what to look for on the scrape samples. Great advice before, throughout and after the visit. Would highly recommend 👍🏻

Emma, Filey


Mark, Newcastle

Excellent service. Knowledge second to none. Quickly discovered a couple of basic parameters in the pond were not correct and they have now been rectified. Highly recommend

Anthony, Goole

had the legend himself dean dimarco round never seen or heard anyone with as much knowledge as this guy thanks for your help mate

Andrew, North Allerton

Dean came to have a look at our pond today there was something not right and we couldn’t find the problem. After dean had done all his water checks that came back all ok the fish that looked to have problems dean looked at its gills and something didnt look right. Dean had to remove some stuff from the fishes gill and he put it under the microscope to see what was going on after a quick look he found chillo and there was quite alot of it straight away we put a treatment in and hopefully all the fish will be back to normal very soon. Dean is very knowledgeable and explains things in a way thats easy to understand i would definitely recommend getting intouch if you have any problems thanks again dean

Patrick, York

Excellent information given today .explained too us what too do .checked all the water for everything .interesting day for both of us .shop time tomorrow for treatments and away we go again .thanks once again Deano.we will be back in contact and would recommend too anybody

Kev, Newton Aycliffe

Wow what fantastic service from Dean at the Koi clinic, very professional, gives honest and open advice, doesn’t try and sell you anything, genuine heartfelt service and advice, seriously if you have any queries around water quality, fish health, filtration etc The KOI clinic should be your first call, absolutely class!!!

Daniel, Hartlepool

I’ve been struggling to get on top of a parasite issue with my koi. Called Dean who arrived promptly for the appointment. Water tests and individual koi examinations carried out. In the world full of koi internet knowledge it is really refreshing and helpful to get the facts and not the opinions. Thank you for the visit, and the expert advice you have shared.

Leigh, School Aycliffe

Dean, was excellent when he recently came to help with my pond issues, he went through everything with me and advised me the best way to move forward with my pond he checked everything for me and was happy to answer any questions I had for him, thanks again Dean !

James, Sunderland

Absolutely great guy with a wealth of knowledge that’s 2nd to non! Very happy i contacted dean. He came and diagnosed my problems to which i would’ve never guessed the actual problem and would’ve more the likely treated for something totally differant and wouldn’t of helped in the slightest. Not only do i know where I’m going wrong i now know I’ll sleep better tonight. Thanks dean.

Dean, Wallsend

Dean drove 3 hours to visit my koi today. The most thorough investigation and helpful guy I have met. I can understand why he is so highly recommended. I am now confident that my fish will return to their full splendour following his diagnosis. He gave me all the advice and time I could possibly want. Top bloke! Thankyou Dean.

Carle, Burntwood

Dean came round and anything this guy don’t know ain’t worth knowing, genuinely a nice guy and has the time to show you everything u need to know best of all he’s there at the end of the phone if a problem arises.

Jay, Consett

Would definitely recommend, lovely guy and very knowledgable! Quick to respond to calls and messages and was quick to come out and help me with all my issues. I now feel a lot more confident in what I’m doing 🙂

Nathan, Durham

Deano visited today as i had been having a problem for some time that I couldnt put my finger on. Deano tested all water parameters which were all fine apart from slight traces of Chlorine and slightly low oxygen levels which he gave advice on moving forwards. Next onto the scrapes and Deano found white spot and Costia which I’d probably missed myself and also Flukes in low numbers. Its was great talking to Deano who’s knowledge and experience is the best in the business and I learnt so much talking to him. Excellent and thoroughly professional service. Highly recommended.

Bradley, Guiseley

Excellent service and would recommend highly to anyone who needs help with their koi .Helped me learn an awful lot in a short visit and gave me the confidence to do my own tests

Steve, Chesterfield

Excellent service. Knowledge second to none. Quickly discovered a couple of basic parameters in the pond were not correct and they have now been rectified. Highly recommend

Anthony, Goole

Absolutely amazing service, so knowledgeable, calm and kind, if you have any issue with your pond or Koi don’t hesitate to contact. Professional, thorough and the follow up and aftercare advice is amazing. Thank you so much.

Tilda, Brampton

I had a home visit from The Koi Clinic last night.
I arranged for Dean to do a health pond visit and check over my two ponds to make sure all the water parameters were correct and a health check of the koi.
He arrived last night and for 3 hours he checked over everything, lots of experience and very interesting chatting to him regarding filters, water quality, koi health and pond treatments ext.
Always nice to have a second opinion from a experienced person.
It’s nice to know I’m doing things correctly.
I would recommend Dean from The Koi Clinic. Excellent Service
Thanks Dean

John , Sunderland

Had The koi Clinic out yesterday. He found things I hadn’t. I’m not going to say what he found as I’m embarrassed. Anyway the service and advise he gives is excellent. He is really worth getting help from.

Alan , Chester-le -Street

Dean visited me today to advise on a few problems I am having. Both was he a great knowledgeable fella but also good to talk with a none judgemental professional. Would definitely recommend him and will use again in the future as and when needed. Cheers Dean and all the best

Nick , Tow Law

THE KOI CLINIC absolutely brilliant service I learnt so much from him and felt confident in doing new things such as sudation and using my microscope lovely guy, always replies to my messages and answers my calls 10 out 10

Lee , Harrogate

Many, many thanks to The Koi Clinic today. Came round to give my pond a spring health check. Wonderful bloke, really helpful, showed me what was right, and how to improve. Showed me how to scrape and use the microscope, found skin and Gill flukes. 😠

Paul , Stockton on Tees

I had a major parasite outbreak in my pond and my fish were very sick. I tried everything possible but they still kept coming back.
Then I called Dean at The Koi Clinic. Within a few weeks, my fish were back to being happy and I started to enjoy the hobby again after almost giving in. Thank you thank you thank you Dean for being such a super star. The knowledge you shared and your expertise was superb and I am sure we will keep in touch for many years to come. Friendly, reliable, affordable and is a life saver for Koi! Thank you Dean xxx

Stacey , Leeds

I was losing fish quickly and called The Koi Clinic after recommendation by my local koi dealer. They quickly diagnosed my problem and within two weeks my fish were fully recovered, even the ulcers. Highly recommended, they saved my fish!!

Mark , Darlington

Dean at the Koi Clinic is one of the best there is when it comes to koi health and wellbeing. He has helped me immensely over the past year and anyone who needs help is sorting any issue, should not hesitate to using these guys. Thanks to Dean I have never had an issue that wasn’t solved very quickly and I now have healthy water and very happy fish. Thanks Dean

Niall , Athlone

We were novice keepers and had some issues early on, we haven’t lost a fish since the Koi Clinic visits. Excellent service.

Rob , Darlington