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API

API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 16-Ounce Bottle

  • Based on 7,775 reviews
Condition: New
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Availability: In Stock.
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Arrives Wednesday, Dec 31
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Size: 16-Ounce


Features

  • Contains one (1) API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 16-Ounce Bottle
  • Rapidly and safely treats fungal infections on body and fins of fish
  • Contains all-natural extract from West Indian Bay Trees to help with fungus and cottony growth
  • Helps heal internal and external bacterial infections in freshwater, saltwater and reef aquariums
  • Use daily for a week when treating infections

Description

API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy treats fungal and bacterial infections in all fish, including even the most delicate fish species such as tetras, discus fry, and scaleless fish like clown loaches. API PIMAFIX Antifungal Treatment alleviates symptoms such as fungus or cottony growth on fins, mouth and body fungus, and reddening of fins and body. API PIMAFIX Antifungal Treatment is safe for use in reef aquariums and will not harm the biological filter or invertebrates, such as live corals and anemones. Use dosing cap on bottle to treat effectively, using 5 ml per 10 US gallons of aquarium water. Follow directions on product label. To treat a broader range of infections, use with API MELAFIX Antibacterial Fish Treatment. API PIMAFIX Antifungal Treatment can be used with all API products, including medications and water conditioners. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

Brand: API


Liquid Volume: 16 Fluid Ounces


Item Weight: 0.5 Pounds


Item Form: Liquid


Manufacturer: Mars Fishcare


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.76 x 2.76 x 8.66 inches; 8 ounces


Item model number ‏ : ‎ 10J


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ June 15, 2004


Manufacturer ‏ : ‎ Mars Fishcare


Best Sellers Rank: #6,639 in Pet Supplies (See Top 100 in Pet Supplies) #29 in Aquarium Water Treatments


#29 in Aquarium Water Treatments:


Customer Reviews: 4.5 4.5 out of 5 stars 7,775 ratings


Item Weight: 8 ounces


Department: Unisex-Adult


Manufacturer: Mars Fishcare


Item model number: 10J


Date First Available: June 15, 2004


Item Package Dimensions L x W x H: 8.5 x 2.28 x 2.2 inches


Item Dimensions LxWxH: 2.76 x 2.76 x 8.66 inches


Item Weight: 0.5 Pounds


Brand Name: API


Target Audience Keyword: ( reptiles | amphibians ), fish


Directions: Shake well and use dosing cap on bottle. Remove activated carbon, if possible, and add 5 ml. per 10 U.S. gal. (38 L) of aquarium water. Dose daily for 7 days. After 7 days, make a 25% water change. Continue treatment if necessary. Use with MELAFIX to synergistically treat a broad range of infections. We recommend turning off the protein skimmer and UV sterilizer during treatment. In saltwater aquariums with no filter, a slight haze may form. Perform a 25% water change if necessary and keep cap tight.


Country of Origin: United States


Model Name: PIMAFIX, 16 OZ


Size: 16-Ounce


Material: cotton


Age Range Description: Adult


Number of Items: 1


Style: Down


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Natural solution for fish fungus
Size: 16-Ounce
API Pimafix works great for treating fungal infections in freshwater or saltwater fish. The liquid formula is easy to use and doesn’t cloud the water. The scent is a bit strong at first but fades quickly. Best of all, it’s made with natural extracts, perfect for those who want to avoid harsh chemicals. Follow the manufacturer’s directions to avoid overdosing and keep your fish healthy. ... show more
Reviewed in the United States on November 11, 2025 by Darien M.

  • Good when combined with melafix
Size: 16-Ounce
Combined with nelafox this does wonders for hospital tanks and sick fish. Doesn't effect plants and you still need to do a partial change of water after a week. Good quality medicine
Reviewed in the United States on November 23, 2025 by Spencer

  • A 100% recommend!
Size: 4-Ounce
My angelfish had some fin nipping goin’ on and looked like he had a short Mohawk ! 😳 Used this product and his dorsal fin grew back in two week. No more Mr T 😂 also smells like tea tree oil which I love👍
Reviewed in the United States on November 11, 2025 by Russell Hartleb

  • Buen producto
Size: 16-Ounce
Buen producto
Reviewed in the United States on September 21, 2025 by Esteban Salvador Barroso

  • For Certain Things This Is A Great First Defense (IN DEPTH REVIEW)
Size: 16-Ounce
(WARNING- This is an in depth review of this aquarium product. This review is to help those seriously interested in purchase make an informed buying decision. For a brief summary, see section marked THE BOTTOM LINE) ------------------- I have been keeping fish for quite a few years now. I have a variety of tanks and fish. When it comes to a first defense, I want something natural and that is not going to strip my tank filters of beneficial bacteria. Let's see how Pimafix measures up. WHAT IS PIMAFIX LIKE? Pimafix is a natural extract of a plant in the myrtle family also known as West Indian Bay tree. It is a weak extract which helps nudge the water into a more healthy environment for the fish in certain instances. This comes in a bottle with a measuring cap on top. You use 5ml for every 10 gallons of water, and use daily for seven days, followed by at least 25% water change. The smell is a bit herby and the appearance is clear. WHAT DOES THIS TREAT? This is used primarily for fungal conditions such as fungus growths, mouth and body fungus, and even reddening of the fins and body- but not the kind that is sores- that is better addressed by APIs other product called Melafix which is derived from tea tree. HOW DOES THIS PERFORM? This performs well when used for cottony looking fungal growth. I had a fish with a small patch of cottony growth on a top fin. After a week of use of Pimafix, the growth has gone down by half and none of the other fish have shown signs of it. DOES THIS AFFECT THE FILTER? This does not throw off the biological filter of the tank if used as recommended with water changes every 5 to 7 days. ANY UNUSUAL THINGS? This does create a tremendous foam in a tank so don't panic if that happens to you. It is normal and will go away eventually. SENSITIVITIES I HIGHLY recommend that when you start using Pimafix that you use a smaller dose at first to test for any fish sensitivities. I have used this in all of my freshwater tanks, usually with no problem, including snails and shrimp. HOWEVER, I have had occasional fish which have personal allergic reactions or difficulties with Pimafix or Melafix. It is important that you either remove the sick fish into a hospital tank that you can isolate treatment and observation or at least start with smaller doses to test and see if any fish are allergic. THE BOTTOM LINE For fungal conditions, if you use Pimafix as a first defense, it will help reduce and often reverse cottony looking fungal conditions and general body or fin reddening. For more serious conditions, something a bit more intense might be required. MY RATING I really love Pimafix. It works well if you catch things early in your tanks, and often can go hand in hand with Melafix, depending on your fish. ... show more
Reviewed in the United States on October 3, 2018 by Colorgirl

  • Keeps our fish healthy
Size: 16-Ounce
We have a 300 gallon fish tank and use a lot of this. It works great to keep our fish water clean and smelling good and our fish our happy and healthy.
Reviewed in the United States on September 18, 2025 by karen beadencup

  • Buena calidad
Size: 8 oz
Exelente producto
Reviewed in the United States on September 28, 2025 by Saul

  • API PIMAFIX
Size: 8 oz
Three stars because the bottles didn't have a thermos-sealed cap. This suggests the medicine may have been bottled in a basement, not a factory, and is not of the expected quality. Be careful when ordering!
Reviewed in the United States on September 24, 2025 by igor igor

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