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๐ Heal, Protect & Thrive โ Your Bettaโs Best Defense!
API BETTAFIX is a 1.7-ounce antibacterial and antifungal treatment designed specifically for betta fish and tropical aquariums. Infused with natural melaleuca (tea tree oil), it rapidly heals bacterial infections, fin rot, ulcers, and wounds while promoting fin regrowth. Ideal for treating new fish and preventing disease outbreaks, this trusted API formula requires daily dosing for up to 7 days and is highly rated for effectiveness and affordability.



















| Customer Reviews | 4.4 out of 5 stars 7,686 Reviews |
N**E
Saved My Betta
Our poor elder Betta development a condition where he couldn't swim well, just floated and his fins were deteriorating. Also some sort of white film was growing in the tank. This medicine and regular water changes worked wonders. He's back to his old self now! Fins have mostly grown back, not as flowing, but looks like a healthy female Betta. Amazing recovery!
S**P
Works well, got a happy Betta fish again.
Worked well on my Betta fish. He is back to eating well and swimming around again as he did when I first got him.
A**I
Great product, Great results โญ๏ธ
Definitely a great product, that WORKS!!! Started treatment in my small 3gal tank for my betta fish Jack on May12th (photo1), and literally like magic i watched him get better each day. He ate more, he played more, he made more bubbles in the tank showing his appreciation too. Today is May 22nd and you can just see the results speak for themself in the photos. A BIG THANK YOU!
B**K
Help s fish
Good antiseptic for fish in very small quantities
L**5
Works great against fin rot
My betta fish didn't look great when I got him, but he was a color match for one I'd bought with my nieces and nephew that didn't make it through his first water change. I was careful, but the other guy just didn't handle the stress of the new tank. I've had many betta fish over the years. They normally last about 6/7 years. I hadn't had one in a while and I felt it would be a fun thing to get for the kids. So, when the little guy didn't make it I rushed out to the pet store looking for a near match so the kids weren't upset. The only similar fish the pet store had looked a little tired with fins that weren't great, but not that bad. I took a chance and thought he might do better with a good water change, nice size tank, and some TLC. I used a little aquarium salt at first as I'd read it fixes most issues like these, but it wasn't enough. His energy was good, but his fins got worse, and clean water changes weren't working. I think they were stressing him out. It didn't look like normal fin rot. The tail had gotten really pointy and strange looking. I've never had that happen with a fish before. In fact, I've never had to deal with fin rot at all. After some research I bought this to give it a shot and within a week the little guy has a nice, normal, fan-like tail instead of the pointy rotten one. He's doing great. I've never used a product like this, so I have nothing to compare it to. I didn't know what to expect, but I'm thrilled with the results. The little guy is flaring again and swimming all over the tank. I'll keep this product on hand as long as I own fish to ensure I have it if they need it. I think when using this product, like with any chemicals for your fish, that you follow directions and err on the side of caution so as not to use too much. My little guy is recovering and I've stopped using the product. There's a very small hole in the tail, but I think at this point the aquarium salt and frequent clean water will heal that.
S**F
Didnโt help my fish
It didnโt help my betta recover. It died shortly after, not sure if it was due to using this product or just something else. This product overall had clear descriptions, decent size and no smell.
J**E
Works great
Worked great. Saw an immediate change in my fish. He is up swimming and doing well. His color is much better. Whatever was bothering him is gone. I did a price comparison at a local pet store and this one was half the price.
D**H
Works and is Inexpensive
They should let people know, perhaps on the front label, that this is basically Tea Tree Oil. So it's mostly a natural medication. I used it on my Betta Fish, and it healed fish of minor fin rot. The instructions are very clear; but the water does get a bit murky and icky after 3 days of treatment (halfway through). I did several small water changes to stop the water from looking icky and murky during treatment due to my smaller 5 gallon tank. But I had to do a complete tank cleaning after the 7 day treatment - cause the water is so murky. But it works, and that is what counts! I would definitely recommend
I**I
Perfetto
Aplicato su i guppy e funziona davvero bene
J**A
Useful
Useful product
C**K
100% worked
100% worked , definitely recommend for Fungus
S**V
Fin rot
Helped my buddy with water changes every two days
T**L
Works perfectly! Saved my fish!!
My betta fish I rescued from a pet store was injured on her head/face, her fin was ripped and she had popeye. Betta fix cleared it up and sheโs doing much better now!
Trustpilot
2 weeks ago
2 weeks ago