






🐠 Dive in fast—your fish’s new best friend!
API Quick Start 32 Oz is a powerful liquid solution that instantly introduces beneficial nitrifying bacteria to your aquarium, accelerating the natural nitrogen cycle. Suitable for both fresh and saltwater tanks, it helps convert toxic ammonia into harmless nitrate, reducing fish stress and loss. Ideal for new setups, water changes, and adding new fish, this BPA-free formula is trusted by thousands for rapid, reliable aquarium health.



| ASIN | B07BTMK57N |
| Allergen Information | BPA-Free |
| Best Sellers Rank | #8,521 in Pet Supplies ( See Top 100 in Pet Supplies ) #75 in Fish Medication & Health Supplies |
| Brand Name | API |
| Country of Publication | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (12,430) |
| Global Trade Identification Number | 00317163170892 |
| Item Form | Liquid |
| Item Type Name | Quick Start 32 Oz |
| Item Weight | 1.03 Pounds |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Mars Fishcare Inc |
| Manufacturer Part Number | 89Q |
| Model Number | 89Q |
| Target Species | Fish |
| UPC | 317163170892 |
| Unit Count | 32 Fluid Ounces |
B**E
Very recommended
Its good to rapidly reduce ammonia
A**N
Don’t Buy for cycling new tank
Won’t recommend this product for cycling your new tank.
V**R
Product damage and leaking
Product damage and leaking
M**H
Does nothing
it took me weeks to start the cycle
M**T
Tried a few other types and this one works the best for my fish. They are happy and healthy, which means so are we!
S**N
Very good for the money. Works as good as a bacteria in a bottle can work!
S**E
Highly effective Improves water quality by maintaining bacterial colonies Easy to use... Rather than other products. Must to stepup a new tank.. also it is good to add once in month so replenish the bacterial colonies
K**E
This is the only brand I use for my Koi and goldfish tanks going 4 years now. It’s reasonably priced compared to other brands I have looked at and works great.
D**H
Great price quality first class
Trustpilot
2 weeks ago
3 weeks ago