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๐ Dive in nowโbecause your fish deserve the freshest start!
API QUICK START is a 30 ml liquid nitrifying bacteria solution designed to instantly cycle new freshwater and saltwater aquariums, allowing immediate fish introduction. It reduces harmful compounds when used regularly, helping prevent fish loss during tank startups, water changes, and filter maintenance. Trusted by thousands with a 4.6-star rating, itโs a must-have for professional and hobbyist aquarists alike.













| ASIN | B00DDYZQY0 |
| Allergen Information | Apple Free |
| Best Sellers Rank | 1,600 in Pet Supplies ( See Top 100 in Pet Supplies ) 14 in Aquarium Water Treatments |
| Brand | API |
| Brand Name | API |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.6 out of 5 stars 15,084 Reviews |
| Global Trade Identification Number | 00317163010891 |
| Included Components | API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle |
| Item Form | Liquid |
| Item Type Name | Aquarium Bacteria |
| Item Weight | 41.13 Grams |
| Item form | Liquid |
| Item weight | 41.13 Grams |
| Liquid Volume | 1 Fluid Ounces |
| Liquid volume | 1 Fluid Ounces |
| Manufacturer | API |
| Manufacturer Part Number | 89A |
| Model Number | 89A |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 317163010891 |
| Unit Count | 1 count |
| Unit count | 1 count |
M**S
Superb products.
Superb product. API is one of my resources for many of my aquarium essentials. Never had any problem with any of there items. Great value for money, with many products giving you size options for what you need. All products from medicated to water parameters and plant care. These products are made with an ease of understanding for what that purpose is and will help you on your fish keeping journey.
T**A
Great product, great price
Great product and excellent customer service. My first bottle arrived empty, but the seller sorted it out straight away and sent a replacement very quickly with no hassle. Really appreciate how fast the problem was resolved. Very happy with the purchase and would definitely buy from this seller again.
I**O
Great
Working well.
P**N
Mixed reviews.
The mixed reviews and its claims have made me worried about using this. However I put a half measure in. I found in some fish products you can have Armageddon so if in doubt donโt use it or use smaller measurements. I have no fish in the tank yet and Iโve been doing test strips. Fish in two weeks and water checks coming to satisfactory so must play some part. I usually use cycle but water tests for both have been good.
H**N
Good product!
Got this as a cheaper alternative to the more expensive axolotyl versions and it has been great. Like people have said it is quite small but it is also perfect as you only add a couple of drops each time.
P**A
API
Great api quick start.
D**S
Quick Start aquarium liquid
It is good stuff but wait 4 weeks before putting any fish in your tank. Plants growing very strong.
K**E
worth the money
provides your tank with a bulk load of good bacteria to help build a colony against amonia and nitrates / nitrites
B**E
Very recommended
Its good to rapidly reduce ammonia
L**E
Best product
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
B**R
Came quick
Speedy shipping I added it to my tank and all my fish are fine
P**Z
Good
Good
J**.
Great product!
This is such a great product for aquarium set ups, at the start up or clean up stage. I've used it to cycle my 3 gallon tank for a single betta. Very convenient to use and quality of aquarium water is clear and clean. I'm using a sponge filter with API Quick Start - I add some to my tank water according to the instructions, every time I clean the aquarium. It's working well for me to date.
Trustpilot
2 weeks ago
3 weeks ago