Koi Health 101

How to Properly Feed Your Koi: Understanding Fe...

July 28, 2025

Feeding koi properly requires more than simply throwing food into the pond and hoping for the best. Experienced koi keepers and breeders understand that feed rations should be calculated as...

How to Properly Feed Your Koi: Understanding Fe...

July 28, 2025

Feeding koi properly requires more than simply throwing food into the pond and hoping for the best. Experienced koi keepers and breeders understand that feed rations should be calculated as...

Why I Don’t Sell Bottled Bacteria—and Why You S...

July 12, 2025

In the koi industry, there’s no shortage of products designed to take your money while offering little to no real value in return. As someone who’s spent over 30 years...

Why I Don’t Sell Bottled Bacteria—and Why You S...

July 12, 2025

In the koi industry, there’s no shortage of products designed to take your money while offering little to no real value in return. As someone who’s spent over 30 years...

Quarantine Procedures

May 15, 2025

Proper Quarantine Procedures for Koi: A Guide for Hobbyists Quarantining new koi before introducing them to your pond or aquarium is one of the most critical steps to ensure the...

Quarantine Procedures

May 15, 2025

Proper Quarantine Procedures for Koi: A Guide for Hobbyists Quarantining new koi before introducing them to your pond or aquarium is one of the most critical steps to ensure the...

Koi Health Symptoms: Catch Issues Early to Save...

May 14, 2025

Koi are tough fish, often living for 40–60 years, but even well-maintained ponds can face health challenges that put these colorful creatures at risk. Catching problems early is essential to...

Koi Health Symptoms: Catch Issues Early to Save...

May 14, 2025

Koi are tough fish, often living for 40–60 years, but even well-maintained ponds can face health challenges that put these colorful creatures at risk. Catching problems early is essential to...

Koi Pond Water Chemistry: Stability & Safe Wate...

May 9, 2025

Maintaining a healthy koi pond hinges on mastering water chemistry, as water is the lifeblood of your fish’s environment. Far more than a simple liquid, pond water undergoes constant chemical...

Koi Pond Water Chemistry: Stability & Safe Wate...

May 9, 2025

Maintaining a healthy koi pond hinges on mastering water chemistry, as water is the lifeblood of your fish’s environment. Far more than a simple liquid, pond water undergoes constant chemical...

Koi Pond Algae, Plants & Gravel: Balance for He...

May 2, 2025

Algae, Plants, and Gravel in Koi Ponds: What You Need to Know Creating a healthy koi pond involves managing algae, plants, and pond design to keep water clean and fish...

Koi Pond Algae, Plants & Gravel: Balance for He...

May 2, 2025

Algae, Plants, and Gravel in Koi Ponds: What You Need to Know Creating a healthy koi pond involves managing algae, plants, and pond design to keep water clean and fish...

Let customers speak for us

from 26 reviews

Simply the best place to get help for your koi

To start with the order was going to be delayed by the shipping company and they took the time to cancelled my order and resend it over night So I got it on time. I got the medicine needed for my koi and any questions had where answered. They went out of there way to make sure my koi where safe. They are the Only place I will turn to for help. Robert Haas

Robert

09/14/2025

Emergency Medicine Kit

Great!

I bought this for my pond. One of my goldfish got an ulcer on its side and this cured my fish! I put the fish in a hospital tank with this medicine as instructed. Now it is back in the pond and doing great!

Anonymous

09/10/2025

Bacterial Blast

It works!

Bacteria Blast made quick work of a columnaris (mouth rot) issue. It took only ten days from hospital tank to back in the pond and doing well.

Mike

09/09/2025

Outstanding customer service with quality products

Kari

Bacterial Blitz

2nd purchase

This is my second purchase from Jason and his KrazyKoi meds line. Both times I experienced excellent customer service and follow up care. No company is as attentive and responsive as Jason when it comes to helping purchase, use meds, and care for your fish. I will continue to purchase from this company because of price, availability of medications, and aftercare provided.

J.S.

Krazykoimeds

I used the Purple Magic for the first time and used it for prevention

I used the Purple Magic for the first time and used it for prevention. So far so good!

I appreciate you and trust your knowledge and expertise. Thanks

Terry

08/27/2025

Purple Magic

Love the packaging and bucket!!!! All looks amazing

Love the packaging and bucket!!!! All looks amazing. Have not used any of it yet.

Monica

08/24/2025

It works

Treated a goldfish for columnaris (mouth) in a hospital tank after a stressful spawn. She started eating again a week after treatment and then back in the pond.

08/11/2025

Easy to follow instructions

Easy to follow instructions, just started using it but is a brand from a trusted source, so I have full confidence in the results.

Great! Product

Great! Product. Product really works and easy to use.

Barry

07/30/2025

All of Krazykoimeds are about standard they are tried and tested!

Bryan

07/28/2025

QP gave be the courage to buy 2 goldfish from the Sick Tank at Petco!

Quarantine P gave me the courage to buy two Ryunkin goldfish from a Sick Tank at Petco! I had no idea what thesick appearing fish in the tank had… parasites, bacteria, etc… but I figured if I use QP it would erradicate the issues. And it did. I detected parasites and Ich… that I could SEE. Instead of using three different products, onefungal, parasites and bacteria… and product poison overload. QP accomplished the clean-out process without the stress of not knowing if they would have survived three products, slapped together. So to speak. I like that KK meds have done the fail and learn time-tested method, essentially an actual longitudinal clinical trial. And the sourcing of the medications is vital, which I can tell is well sources thus far, as their products have solved the problems and kept the fish alive! I no longer fear medicating goldfish/koi with heavy meds , as opposed to methyl Blue and salt dips, since I had success with KK meds. As stated before… I rarely write reviews. Just leave 1-5 stars. But I want to help others and of course, fish. Stay away from these mass produced big fish company medication products. Don’t do it.

Alexis

07/23/2025

Quarantine Pro

All I know is that my injured fish recovered and

All I know is that my injured fish recovered and seems to be doing great! Jason gave me instructions and was great through the whole nerve-wracking issue! THANKS SO MUCH!

david

07/22/2025

Fantastic!! product

Fantastic!! product. works great, great price, easy to use and fast shipping. Can't say enough good things about this product. Highly recommend.

Excellent

Excellent. Where all big label antibtoics and bacterial infection agents fail...Blitz and KK products do not. I think the sourcing of the indegrediants and the right, amounts, and combos, make this product produce results! Every other time I have tried anti-bacterial big co. label products my fish have either not gotten better or died from product posonioning. These products I've found to be safe and effective. I rarely write reviews.

07/20/2025