Treat & Neutralize
MinnFinn treats external diseases in fresh water and marine aquatic animals. Treatment is easy, completes in 1 hour, and requires no water or filtration changes. Instructions walk you through 2 easy steps:
- Add medication
- Add neutralizer to remove medication
Fish and coral stay in their tank for treatment, which minimizes their stress.

MinnFinn is effective against a broad spectrum of diseases, so you don’t need a microscope to diagnose your disease before you start treatment.
Best of all: MinnFinn is non-toxic to you, your aquatic animals, your plants, and the environment. Most fish medications on the market contain cancer-causing ingredients that are not legal for humans (silica, Gentian Violet, Glutaral, Malachite Green). MinnFinn is one of the only medications available that do not require a CA Prop 65 safety warning.
Customer Testimonials
Common Fish Diseases

Ich and White Spot (Parasite)
Most often pinhead sized white spots on body and/or fins. Clamped fins, scratching, heavy breathing, lethargic.

Flukes (Parasite)
Found on gill and/or body, bleeding, clamped fins, scratching, heavy breathing, lethargic

Costia, Chilodonella, Trichodina (Parasite)
Often rapid mortality, lighter appearance, clamped fins, scratching, heavy breathing, lethargic