API Pimafix Freshwater & Saltwater Fish Fungal Infection Remedy, 4-oz bottle

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About This Item

Details

  • Quickly treats fungal and bacterial infections such as cottony growth, fin and tail rot and many more.
  • Safe for delicate fresh and saltwater fish.
  • Made from antifungal properties from West Indian Bay trees.
  • Formulated to not only treat disease, but develop resistance.
  • Safe for reef aquariums and live plants and should not adversely affect the biological filter, alter pH or discolor water.

Instructions

FAQ

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Questions & Answers

21 Customer Questions

Is it safe for fish who may not need it

Answer by Chewy • Aug 21, 2022
This product can be used with healthy fish.

Is this safe around dogs if they accidentally drink water from

Answer by Chewy • Feb 22, 2019
At this time, this remedy is not intended for the consumption of humans or pets.

Since Pimafix is to treat fungal AND bacteria infections, am I correct in assuming Melafix should not be nessarry? Or is there benefits to using both products together?

Answer by Chewy • Jul 09, 2019
You can use just the API Pimafix to treat the fungal and bacterial infections. If the bacteria and fungal infections persists this combination is in fact recommended in treating the stubborn infections. Use each medication at the recommended dose. There is no need to reduce the dose when using both of them.

What is the dosage for ponds?

Answer by Chewy • Apr 12, 2018
You should add 5ml of API Pimafix per 10 U.S. gallons of water.
Reviews
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4.4
Rated 4.4 out of 5 stars
98 Ratings
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40 Customer Reviews

Rated 4 out of 5 stars
By Stephanie on Dec 19, 2025

Needed this when I added fish

Bought new fish and added them to my guppy tank. Two days later one of the new ones started turning white? Like half her body turned white n then she died then the

Bought new fish and added them to my guppy tank. Two days later one of the new ones started turning white? Like half her body turned white n then she died then the next day my female I had for a while that was in the tank w the new fish started turning white and died rather quickly and then it got one of my male guppies while I was waiting for this to be delivered. I’m currently treating both tanks just incase and haven’t lost anymore fish so I suppose it’s working.

Rated 1 out of 5 stars
By Katherine on Jan 18, 2026

you only hear what you want to

you keep saying it's inappropriate your stuff didn't work it's cheap it belongs to the 99 cent store subject closed is that good enough for you now chewy.com that

you keep saying it's inappropriate your stuff didn't work it's cheap it belongs to the 99 cent store subject closed is that good enough for you now chewy.com that I've wasted all my money with or do you want to curate what is written more

Rated 5 out of 5 stars
By Paula on Sep 15, 2025

The quality of the Service team. Always so kind and caring.

All of the items, I purchase from Chewy, include everything I need for my 3 feral cats, 2 pups, my birds And my aquarium needs.

All of the items, I purchase from Chewy, include everything I need for my 3 feral cats, 2 pups, my birds And my aquarium needs.

Rated 5 out of 5 stars
By Aimee on Dec 15, 2025

Great product

Fast delivery, Great price

Fast delivery, Great price

Rated 2 out of 5 stars
By Kennedy on Jan 4, 2025

Works.. but at a cost

My betta started getting these suspicious red spots on his fins, so I got some Pimafix and dosed his tank. Within 12 hours my mystery snail was lethargic and clinging

My betta started getting these suspicious red spots on his fins, so I got some Pimafix and dosed his tank. Within 12 hours my mystery snail was lethargic and clinging to the surface of the water for air and eventually fell to the bottom and didn’t move at all (it says it’s invertebrate safe but after that, I wouldn’t say so). So into quarantine he went. Then my betta stopped eating and became lethargic. His fins healed up within 48 hours, no more spots, but now he won’t eat and after another 48 in a quarantine tank with fresh water, he’s finally starting to move around more, but still refuses to eat. I’m very worried and regret using the Pimafix. I’m sure it worked fine for other people and fish, but not for us.

Rated 5 out of 5 stars
By Diana on Apr 3, 2025

name API

love API, not only is there customer service great, their product seems to be very good,especially for gouramis.. healthy gouramis every time....

love API, not only is there customer service great, their product seems to be very good,especially for gouramis.. healthy gouramis every time....

Rated 5 out of 5 stars
By Wm on Feb 13, 2025

Excellent cleans and cleared the water

Now we have happy fish and beautiful water.

Now we have happy fish and beautiful water.

Rated 1 out of 5 stars
By Jennifer on Jul 17, 2024

Disappointed

I followed the directions on the bottle. States it treats and prevents fish from getting infected. Well a total of nine fish died! The infection went from one fish

I followed the directions on the bottle. States it treats and prevents fish from getting infected. Well a total of nine fish died! The infection went from one fish to another. One weird thing is that the three fish I had started with was the only ones that made it, plus two fry. Feel it was a waste of money buying the two treatments I did. I am nervous to try the other medication and lose the rest.

Rated 5 out of 5 stars
By Ronald on Mar 31, 2025

Just what I needed

It works just like I wanted

It works just like I wanted

Rated 5 out of 5 stars
By Bruce on Nov 20, 2024

used before worked good

has always worked the way iot should

has always worked the way iot should