Koi Scraping Myths: When Treatment Without a Scrape Is Necessary
I see it all the time: someone posts about sick fish, and before they can even finish describing what’s happening, a dozen people jump in saying, “Don’t treat anything until you do a scrape and scope!” Let me be very clear — that statement has become one of the most misused and harmful clichés in the koi world. […]
Why Minerals Are Critical for Koi Health & Pond Stability
Minerals are one of the most overlooked components of koi health. Many ponds look clean, clear, and well filtered, yet the fish struggle with stress, slow healing, poor growth, or recurring health problems. In most cases, the issue is not medication or parasites. It is missing or unstable mineral content. Water without adequate minerals is […]
Why Most Koi Health Problems Start with Parasites — Not Water
There’s a narrative in the hobby that every problem starts with water quality. And while water absolutely matters, it is not the root cause of most real-world health issues I see daily. The majority of koi problems begin with parasites. Parasites stress the fish. Stress suppresses the immune system. Once that happens, bacteria that are already […]
Preventative vs Reactive Treatment: Why Timing Determines Outcomes
Most koi hobbyists treat problems after they appear. That approach guarantees you will always be behind the issue instead of in control of it. By the time symptoms are visible, the underlying cause has already been active long enough to weaken the fish and destabilize the system. What Hobbyists Get Wrong About Treatment The most […]
Potassium Permanganate for Koi: How to Use Purple Magic
Potassium permanganate is one of the most misunderstood and most effective tools in koi keeping when it is used correctly. Unlike many treatments that only target a specific parasite or symptom, potassium permanganate works on the entire pond system. It reduces parasite pressure while also oxidizing organic waste throughout the pond. This is why I […]
Koi Parasite Prevention: Why We Treat Every Animal Except Fish
Every day more hobbyists join the group, and every day I see the same question: “My fish is sick. What should I do?” The first question I ask back is always the same: “Have you treated for parasites?” Most of the time, the answer is no. After hearing that answer thousands of times, it raises a bigger […]
Koi Pond Heat Wave Management: What Actually Helps in Summer
Every summer, the same thing happens. Temperatures climb, and koi forums light up with warnings like the pond is about to boil over. Stop feeding. Add ice. Watch your fish every hour. It’s the same energy people bring to winter, except now it’s aimed at the season that’s actually good for your koi. Let’s be […]
Koi Fungus Treatment: How to Identify and Treat Saprolegnia
If you’ve spotted white, cotton-like fuzz on your koi, you’re almost certainly looking at fungus — and while it looks alarming, it’s very treatable once you understand what it is and, more importantly, why it showed up. The single most important thing to know about koi fungus is this: it’s almost always a secondary problem. Treat only the fuzz […]
Rocks on the Bottom of Your Pond: The Fallacy That’s Making Your Koi Sick
Let me ask you something. Did you ever have an aquarium when you were a kid? Or maybe you’ve got one right now sitting in the living room. If you did, you remember the setup. You had that gravel on the bottom, those little colored pebbles or the sand, and underneath it you had one […]
How Many Fish Can I Fit in My Pond?
One of the biggest misconceptions in the koi industry is “how many fish can I put in my pond?” I see it asked all the time, and every time I see it, it’s frustrating. Somebody will say x amount for 500 gallons, x amount for 250 gallons — and none of that makes sense. As a fish farmer, I […]
