

🐟 Heal, Protect & Thrive — Because Your Betta Deserves the Best!
API BETTAFIX is a 1.7-ounce antibacterial and antifungal treatment designed specifically for betta fish. It harnesses natural melaleuca oil to rapidly heal bacterial infections, ulcers, and fin damage while preventing disease in new fish introductions. Trusted for over 50 years, this easy-to-use remedy ensures your betta’s fins and skin recover quickly, keeping your aquarium vibrant and healthy.




| ASIN | B00025YVRQ |
| ASIN | B00025YVRQ |
| Age Range Description | Adult |
| Best Sellers Rank | #2,985 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Fish Medication & Health Supplies |
| Brand Name | API |
| Breed Recommendation | All Breed Sizes |
| Color | White |
| Country of Origin | United States |
| Customer Reviews | 4.3 4.3 out of 5 stars (7,492) |
| Date First Available | June 20, 2004 |
| Date First Available | June 20, 2004 |
| Directions | Use whenever Bettas exhibit signs of bacterial disease, such as frayed or torn fins, red ulcers, or slimy patches. Add 9 drops per pint or 18 drops per quart of bowl or aquarium water. For larger bowls or aquariums, add ½ teaspoon per gallon of water. Repeat dose daily for up to 7 days, then perform a water change. Treatment may be repeated, if necessary. For tropical fish use, only. |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 3 x 3 x 8 inches |
| Item Package Dimensions L x W x H | 6.46 x 3.27 x 1.42 inches |
| Item Weight | 2.4 Ounces |
| Item model number | 93B |
| Item model number | 93B |
| Language | English |
| Language | English |
| Manufacturer | Mars Fishcare |
| Manufacturer | Mars Fishcare |
| Manufacturer recommended age | 1 month and up |
| Material | Rubber |
| Model Name | BETTAFIX, 1.7 OZ |
| Number of Items | 1 |
| Product Dimensions | 3 x 3 x 8 inches; 2.4 ounces |
| Size | 1.7 Fl Oz (Pack of 1) |
| Style | Aquarium Treatment |
| Target Audience Keyword | ( reptiles | amphibians ), fish |
B**S
Lifesaver!
The Beta Fix water additive was a real life saver for us. We had to make an emergency move with one of our fish into another tank, and this product made the transition so much smoother. It worked quickly, and the fish handled the move without any issues. It’s easy to use, effective, and gave us peace of mind in a stressful situation. Definitely something worth keeping on hand for any fish owner—you never know when you’ll need it.
R**N
Really helped my fish's fins.
This works well if you're fish are having types of fin distress. Just follow bottles directions please.
M**.
Great product
This actually worked really well for my betta. He started getting a bit of rot on his fin and with regular water changes not only did if fix his fin, they grew long and flowy. You can actually see the new growth in the video
B**Y
Great
Worked for my betta he looks a lot better now.
K**E
Helped regrow my betta's tail!
This stuff really works. My betta's tail had some black on the ends and now he is regrowing what he lost. He is a happy betta. Good value for the money, the amount you use will help it last a long time, it doesn't make your tank dirtier, good size bottle, and mine was intact when I received it. Thank you for making this product :)
A**Y
Damaged product
Product damaged. Leaked everywhere. More than a quarter of the bottle empty. The cap was not screwed on all the way. No safety seal to stop it from leaking everywhere.
W**R
Miracle Curr
My poor betta “Hagrid” developed some sort of lesion, sore, ulcer, not sure what it even was a few months ago. He was still eating and acting normal and I read it should heal itself. It kept getting worse and worse and I wasn’t sure what to do. On a Saturday, I couldn’t find him in his tank anywhere. I put a few food pellets in as that usually gets him to come out of his hiding spot. Still nothing. I starting taking out the cave ornaments and tree trunk ornaments and there was Haggy, colorless and lifeless looking. I cleaned the tank out completely and did a complete water change and put him back in. The next morning, Hagrid was even worse, I thought he was dead. I took him out of the tank and put him in a smaller pint size container, this time I noticed he was bleeding from the white lesion spot at the top of his body where the dorsal fin is. I thought for sure he wouldn’t make it thru the night and I stared to look on how to humanely euthanize a betta fish. On a whim, I came across this product and figured what the heck I have nothing to lose. I ordered it on Sunday night and it arrived Monday morning. I followed the directions to a T and added 9 drops to a pint of water and hoped for the best. Hagrid still did not want to eat and was just laying at the bottom of the cup of water. I left him alone in a darkened room and checked on him Tuesday morning after just one treatment and he was starting to swim around! I did another complete water change of the pint container and added 9 drops to the new water. By Tuesday afternoon he was swimming around and looking better. I figured maybe he is hungry as he hadn’t eaten in 3-4 days and sure enough he ate 2-3 pellets! I have no idea how this product works or what is actually wrong with Hagrid, but the white lesion looking thing seems to be shrinking/healing. Today is day 2 and I will continue treatment for the full 7 days as recommended. Definitely give this a shot! I would recommend a quarantine/hospital tank as filter media could make the product less effective, and this way you can make sure the dosage is completely accurate and use it sparingly.
M**Y
Danger, Will Robinson!!!
1) this "heals" (I think) by irritating your fish until it produces a better slime coat 2) it IS an antibacterial/antimicrobial/antifungal for the water so if your water is scummy or full of algae, it will clear it up in 2 days. It will also kill your plants because it messes up the water balance. 3) if your Betta is on death's doorstep, do NOT use this. If you try it, do about 10% for 2 days to see how he tolerates it. The weaker the fish, the more likely this will kill him instead of helping 4) make D**NED sure you're water balance is PERFECT before adding 5) be aware that this will send your KH and TAL through the roof and mess with your pH, even in a perfect tank. MONITOR CLOSELY. I can't say never to use this. It really did clear up the bacterial biofilm on the surface of my tank for a while BUT I only used full dose on the 3rd day. Water parameters went psycho, after that. Betta quit eating... I hope he survives. I recommend finding a good Betta forum online before getting to desperate place. I believe that most Betta illnesses are a result of malnutrition, now. Ignore the employee at the Big Box store who says to give them one lekker every other day and feed them according to the directions on their food. Big Box starves them so the water in those cups doesn't get too dirty. I've lost 3 bettas that I think the cause was starvation or malnutrition from following Big Box advice (and waiting until they were nearly don't to try bettafix, as stated, they were too weak for it to do anything but stress them the rest of the way). I kept treating the symptoms in desperation, not knowing the cause. But seriously. Monitor CLOSELY if you try it. Start low dose. It has some benefits but don't use it to try to "save" a sick fish.
I**I
Aplicato su i guppy e funziona davvero bene
J**A
Useful product
S**V
Helped my buddy with water changes every two days
A**R
1日も立たないで、私のペタは死にました!
P**A
A Must Have Product For Every Betta Hobbyist. Cures A Vast Range Of Diseases And Very Helpfull In Restoring & Maintaining Overall Health Of Your Betta Fish. Highly Concentrated Product Last For A Long Time.
Trustpilot
1 month ago
3 weeks ago