KOIKA BAC+ Aquarium Probiotics, Pleasant Smell, Disease Resistance, Immunity Boosting (BAC+ (New Formula), 105ml)
$18.99
Price: $18.99
(as of Oct 19, 2025 16:19:10 UTC – Details)
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Koika’s Product Collection
ABOUT US
KOIKA is a brand of Lien Hiep Phat Science Technology Company Limited founded in 2013.
With the technology transfer of American partner and application of Artificial Intelligence AI 4.0, the laboratory and production process of KOIKA have met the ISO 22000 and GMP
KOIKA products help support the health of aquatic animals, improve the aquatic environment leading to making it more convenient and safer for hobbyists to fishkeeping.
Product Dimensions : 5.83 x 1.77 x 1.77 inches; 4.16 ounces
Item model number : K1
Date First Available : August 25, 2021
Manufacturer : LIEN HIEP PHAT SCIENCES & TECHNOLOGY CO., LTD
ASIN : B0BM8PYFYZ
Best Sellers Rank: #66,114 in Pet Supplies (See Top 100 in Pet Supplies) #37 in Fish Medication & Health Supplies
Customer Reviews: 4.1 4.1 out of 5 stars 204 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); } }); });
🐟 Immune System Support: Probiotic for digestion of aquatic animals. KOIKA BAC+ contains many effective natural compounds and probiotics.
🐟 Higher Probiotic Density, Milk Smell: Probiotic supplements have high density of beneficial microorganisms with effective enzymes and secondary compounds. Keeps longer after opening for a more economical use than liquid form and safe for users and aquatic animals.
🐟 BAC + probiotics added to food perform better than feed containing only normal probiotics. In KOIKA’s research, beneficial microorganisms can be affected by the temperature of the production process fish food, causing microbial density and secondary compounds to be reduced. Be a wise customer.
🐟 Promote Growth Of Fish And Shrimp In Aquarium, Liven Up Colors Of Fish and improving the aquatic environment. Economic efficiency for large tanks/ponds with large numbers of fish and shrimp.
🐟 GUARANTEE: Please feel free to contact us if you have any questions. We will do our best to solve your problem to ensure you get the best shopping experience.
Customers say
Customers find the aquarium probiotic beneficial for their fish’s health, with one reporting their fish’s digestive system improved and another noting their pets are no longer getting sick. Moreover, the product receives positive feedback for its value for money and appearance, with customers saying their fish look better than ever. However, several customers mention the product has a funky smell.
11 reviews for KOIKA BAC+ Aquarium Probiotics, Pleasant Smell, Disease Resistance, Immunity Boosting (BAC+ (New Formula), 105ml)
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L. A. P. –
Will buy more
this product help my fishes a lot, they look healthier, stronger. got home from work. taka a look at them, they are very active. and i am very happy i found this product for my fishes. when i feed them, i got the feeling like they are trying to say “thank you”. i will buy more Koika Bac for my fishes. i have tried other products in the past, until i tried Koika Bac, and i am vey glad that i chose the right Probiotics for my fishes.
Janine –
Excellent
Great product, wonderful. Thanks
Rachael Ojeda –
It saved my bettas life
I had just gotten a new betta from Petsmart. A day after putting her in her new tank I noticed she wasnât as active. She grew a bit worse and I tried fungus tablets and when that didnât work I tried antibacterial tablet. I kept reading about what could be wrong. Then I realized that I donât think she had gone to the bathroom. She looked like she could die at any time. Within 6-8 hours after putting a few drops in the water she was moving around more. Then by the next day she was fine. This product saved my fish!! Yes it smells funky, but most medicines do!!
Katharine Cushing –
This stuff changed the pH in my 5-gallon tanks
I feel like I can never do enough for my 2 bettas. They each have their own 5-gallon tank. I wish I had not bought this now, because I did have their water perfect! I’ve been using Tetra Cleaning Bacteria in their water to build “good bacteria” colonies in their bed and filter. So, I thought this would be “even better.” Shortly after using it for the first time, BOTH tanks showed raising alkalinity do the danger region. I did a water change with properly conditioned R/O water (which is more naturally acidic). That helped for a while, but I’ve had to do emergency changes when my test strips and API Test Kit analysis showed scary alkaline. Boo hiss! I cannot say for absolute certainty that THIS product did it, but I’m not trying it again. I just wanted to put that out there for other customers to consider. (PS – Plus the instructions are so terrible, and confusing! After spending a long time trying to decipher what to do, I chose to “spritz/spray” the stuff on top of the tank water. A couple of days later, pH and alkalinity rose in ways I have not ever seen.)
Sunnysidebyari –
Stinks
I used this to give my beta better health but it was a little stinky . Did not discolor tank .
Minhnguyen –
.
I mixed it with food and fed it to my aquatic shrimp. After more than a week, I saw clear water and the shrimp ate more and became healthier.
Laura V. Babb –
Saved my beta fish
Not sure how this stuff works, but my fish was buried under the rocks for nearly 3 weeks. He had lost many of his pretty fins. I cleaned the tank and he still didnât move much and wouldnât eat. I used this product and heâs back to life and looking better than ever.I would highly recommend this product.
Huy –
Fantastic than expectations
Really than my expectations, our fishes look starving and search every corner to find foods. They are more lively and healthy. Great products because we have the aquatic showroom: Pet Travel Online in Raleigh, so we always search bio-tech products for our fish. These products of this company certified our wishes. Low cost to invest but effective. We appreciate.
Client d’Amazon –
Bon supplément mes poissons lâaime bien ils pop comme des bonbons la-dedans! ils sont en santé et plus calme bon surtout pour les poissons plus fragile vais surement racheter le produit! Je ne conseille pas le mettre directement dans l’eau a moins que vous ayez un petite aquarium sinon ça gaspille trop.Moi je le donne pendant que je donne du congeler ou je fais la nourriture moi même et jâen met dedans C’est efficace .A une bonne senteur de ”fishy” les poissons aime ça.le live c’est plus difficile un peu par contre a moins que ce soit des vers je ne le conseille pas. jâen ai mis avec des fairy shrimp et des arthropodes… ils sont mort avant de les mettre dans l’eau. Mais c’est vrai aussi qu’on ne peut pas surdosé le produit, Les poissons les invertébrés vont bien j’ai eut aucun problème. La première fois j’ai mis le produit directement dans l’eau j’ai une 75 gallons alors j’en ai mis XD je sais pas le live ça doit être trop petit pour moi ça pas marché.
Huy Nguyen –
Product was delivered quickly and as described.
Amazon Customer –
Came fast but no sprayer just the bottle. Totally useless nowDirections came on a little piece of paper that was hand torn in French !!!