About Fishyfarmacy.com
The best treatment is the one you never need
A plain-English diagnosis library for ornamental and farmed fish, paired with the equipment that prevents, monitors and treats the conditions in it.
Fishyfarmacy.com exists to answer one question: why do fish get sick, and how do you stop it? We bring together a deep, plain-English disease library and the equipment that keeps fish healthy — so hobbyists, breeders, koi keepers, and aquariums can act with confidence instead of guesswork. The lesson that keeps repeating is simple: the best treatment is the one you never have to use.
That’s why our focus is the equipment that prevents and manages disease in the first place. The water itself — its clarity, oxygen, temperature, ammonia, and pH — is where almost every outbreak begins, and it’s where the right hardware does the most good.
What we do
We curate and recommend the tools that keep fish healthy: UV and ozone sterilizers, hospital and quarantine systems, precise dosing pumps, water-testing meters and kits, filtration, oxygenation, smart monitoring, and the specialist gear commercial farms rely on. Every product is mapped to the conditions it actually helps with, so you can move straight from a diagnosis to the equipment that addresses its root cause.
How we choose
Selections are guided by our diagnostic library — not by whoever pays the most. Each recommendation explains the problem it solves, who it’s for, and where it fits in a treatment or prevention protocol. We share that reasoning openly, because better-equipped fishkeepers raise the standard of the entire hobby.
Browse the equipment catalog, use the symptom checker on our homepage to find what your fish needs, or get in touch for a recommendation tailored to your system.
How we approach fish disease
Water first, medication second
Most disease in a closed system starts as a water parameter nobody measured. Every diagnosis page opens with the parameters to check before anything gets dosed, because treating a symptom in bad water usually fails twice.
Plain English, not Latin
Conditions are described by what you can actually see on the fish — the flick against a rock, the clamped fin, the white spot, the frayed edge — with the clinical name given afterwards for when you need to search for it.
Equipment mapped to conditions
Every piece of gear is tied to the problems it genuinely addresses. A UV steriliser is not a cure for flukes, and we say so rather than selling one anyway.
Quarantine over cure
Most outbreaks arrive with a new fish or a new plant. The cheapest treatment protocol on this site is a hospital tank and four weeks of patience.
Systems we write for
The same parasite behaves differently in a 60-litre desktop tank, a koi pond in March and a recirculating farm. Each setting gets its own guidance.
Who uses this site
Equipment we map to conditions
See all equipment →
The information on this site is educational reference material for aquarists and fish keepers. It is not veterinary advice, and it does not replace a diagnosis from a qualified aquatic veterinarian. Medication legality, availability and withdrawal periods differ by country — check your local rules before treating, and never use a food-fish treatment outside its approved use.
Something wrong in your tank?
Start from what you can see. The checker narrows it to a shortlist, and each condition page tells you what to test before you treat.