API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 8-Ounce Bottle (10H)
Original price was: $12.88.$9.08Current price is: $9.08.






Price: $12.88 - $9.08
(as of Oct 06, 2025 05:29:12 UTC – Details)
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.
Is Discontinued By Manufacturer : No
Product Dimensions : 5.5 x 1.5 x 1.5 inches; 8.8 ounces
Manufacturer recommended age : 1 month and up
Item model number : 10H
Department : Medication
Date First Available : May 28, 2003
Manufacturer : Mars Fishcare
ASIN : B000256ES0
Best Sellers Rank: #6,363 in Pet Supplies (See Top 100 in Pet Supplies) #41 in Aquarium Water Treatments
Customer Reviews: 4.5 4.5 out of 5 stars 7,645 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Contains one (1) API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 8-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
Customers say
Customers find the water treatment effective at treating various fish illnesses and appreciate its good size for the price. The product receives mixed feedback about its smell, with some finding it pleasant while others describe it as very strong. While some customers report their fish running strong for years after treatment, others mention their fish dying. Moreover, the safety of the product is concerning, with reports of it being deadly to bettas and not safe for inverts or mollusks. Additionally, the fungus removal results are mixed, with some customers reporting the white fungus gone while others experienced no improvement.
12 reviews for API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 8-Ounce Bottle (10H)
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Original price was: $12.88.$9.08Current price is: $9.08.
karen beadencup –
Keeps our fish healthy
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.
Ed the Pilot –
Albeit slow in my case, it worked!
Took awhile (a week) but product did work.
jaswartz –
Saved my Denison Barb – miraculous product.
This product worked miracles. I have a 140 gallon freshwater community tank that has 3 Denison barbs (aka roseline sharks) among current residents. Iâve had them for a few years and they have gotten quite large (~5â). Recently, out of nowhere, one of them developed white patches on their dorsal side that continued to grow. He began swimming very weirdly, almost standing vertically in one place the entire day. I had lost another one like this a few years back and the local fish store thought it was a bacterial infection and had me treat the tank with some white powdery stuff. It did not work and I lost that one. This patch on this little guy kept getting bigger until it looked like he had a cotton ball on his back, I was really despairing and thought I was going to lose him.Went online and found that the cottony growth was probably a fungal infection, which led me to this product. Raced out to the local store and bought the last bottle they had in stock. Put it in the tank the same day after removing the carbon from my sump. It was truly miraculous that after only 1-2 days of treatment, he started improving, The large external fungal growth began separating from his dorsal side and completely fell off in another day, exposing the damage the fungus had caused. He began swimming much more normally and rejoined his 2 schooling mates as they darted about the tank. Also noticed he began eating again.I continued dosing for a week and then did a 25% water change. He was still not fully healed, his external scales had not grown back, so I have continued dosing for another week and will do a second water change. He continues to heal and is almost back to normal appearance and behavior again.I am so thankful for this product and how well it has worked for my fish. Canât recommend it highly enough and plan on keeping some in stock.
Esteban Salvador Barroso –
Buen producto
Buen producto
Saul –
Buena calidad
Exelente producto
ICH –
Pimafix + Melafix for new fish – a MUST HAVE
I recently bought five fairly large fancy goldfish (3 Yuan Bao Orandas-females, 2 Lionchus-males) that were quite expensive. The breeder quarantined them for 14 days before they were shipped but I guess the shipping stressed them out because there was some cotton growth, tiny white ones, on their tail-fins and base of their tails, and one had it on her body. They got fungal and bacterial infections although their tank in my home is clean, salted (1 tbsp per 5 gallons) and disease free.I quickly ordered Pimafix and Melafix although I still had some for ‘just in case’ so I wasn’t surprised by the pepperminty scent. Also, I didn’t want the newly established bacteria culture harmed by harsher medicine. I didn’t need to remove any active carbon since I didn’t put any in the canister filter or HOB but if you do, remove these first! I just have Algone packets in there to keep water parameters stable and water clear. Algone doesn’t remove medicine!Already within two days, the two wen-rich Ranchus were swimming happily sans cotton growth, but I kept them in the tank for a week to be sure before putting them into the healthy ‘male’ tank. Two Yuan-Bao Orandas had it really bad, though. They were floating nose-down. After three days, the red one is healthy and fine. Mousse, the chocolate one, is still struggling with an internal bacterial infection but NO MORE COTTON GROWTHS! I have four more days to go before finishing this treatment after which I’ll put in active carbon into the canister filter and do a 30% water change.Pimafix and Melafix really are must-haves for fancy goldfish keepers and serious aquarists! Always have these on hand and use these first before deciding to go for the more harsher medicine like Jungle (now Tetra) Fungus Clear (although this works wonders for more progressed diseases).
Pao –
I did notice that he loved to puck on corners and squeeze behind the sponge …
This product really worked as described! I am a newbie fish owner, so I have very little experience taking care of my goldfish. However, I noticed that he had some scales fallen out after having him for less than 1 month. I didn’t know how he had a few of his scales fallen out since he was in a 30 gallon tank. I have few ornaments in the tank, and there weren’t any sharp objects as well. I did notice that he loved to puck on corners and squeeze behind the sponge a lot, so I assumed it may have been from that. So, I went online and started reading up on how to take care of my goldfish and how to help him grow back his scales or prevent more from falling. At this time, I also wasn’t sure if he had other diseases as well since this was my first time taking care of a fish. So, I saw and read several reviews on this product using it with the API Melafix where previous customers and experienced fish owners wrote about it helping their fish, as well as, preventing diseases and other ailments. I thought I gave this item a try. It was one of the best products I’ve bought for my fish. It really helped him healed his scales. I noticed the area where his scales were missing darkened and turned fleshy again. In about 1 week or so, I noticed the area started growing scales already. I am very happy with this item. However, this product is very strong. I have a small, young goldfish in a 30 gallon freshwater tank, with a 50 gallon Aquaclear water filter system, and following the dosages for this product for a 30 gallon tank, I noticed my goldfish acted very agitated to this product. His eyes also started bulging out more. After observing this, I did 25% water change and used half the given dosage. I think this amount was more tolerable to my baby goldfish. I also noticed that my fish scales and fins became silkier after a week of usage. I’m really happy I tried this product out. I would recommend a lower dosage if you have smaller fish. I also recommend to do at least 2 days 25% water change every time you use the product.
Tanya Marcoux –
The bottle was quite shook up, and popped when I opened it. It was not the products fault, delivery I suspect. However, I have been using it for 4/7 days now. It smells awesome! And I am treating shrimp, and so far, it seems to helping the vorticella! Saw improvement after a single dose!
Al Mansoori –
Ordered this 3 times. It saved my fishâs life. Very good and effective. Highly recommended
bosspenny –
Obviously not something to use all the time but as a fish medication this works well. No real smell to it. Water clarity stays fine. And in our experience this seems to work.
Luis Trevisan –
Salvato mio pesce perfetto!
A Amit –
Good American medicine for pet fish, does not kill good bacteria of biomedia filter, use with melafix