API Quick Start
API® QUICK START nitrifying bacteria allows for the instant addition of fish, as it immediately starts the natural aquarium cycle with beneficial bacteria, which converts toxic ammonia into nitrite, then into harmless nitrate to help prevent fish loss in your tank. Best for use when starting a new aquarium, after water changes and filter changes, and when adding new fish to an existing aquarium. API QUICK START nitrifying bacteria may be used in both fresh and saltwater aquariums.
Instruction: Add 10 ml per 10 gallons of aquarium water.
| Usage | Start new aquariums, after water or filter changes, when adding new fish |
|---|---|
| Water Type | Freshwater and saltwater |
| Amount | 10 ml per 10 gallons |
FAQ
Can I add fish immediately after adding API QUICK START™ nitrifying bacteria to my tank?
Yes, you may add your fish to your aquarium immediately after adding the bacteria.
How long does it take for the bacteria to start working?
The beneficial bacteria begin converting ammonia to nitrite and then to nitrate immediately upon addition, starting the natural cycle right away.
Is API QUICK START suitable for both freshwater and saltwater tanks?
Yes, API QUICK START nitrifying bacteria can be used in both fresh and saltwater aquariums.



Brian Watson –
I used API Quick Start when setting up my new freshwater tank. The instructions were clear and I added the bacteria right after filling the tank. I was able to add my fish within hours, which was a big relief. The water stayed stable and no ammonia spikes were noticed.
Adam Poole –
Great product for new aquarium owners. I added it after a water change and immediately introduced my betta. The tank has been stable since then. No fish deaths or ammonia issues.
Jacob Scott –
Used it when upgrading my saltwater tank. The bacteria worked fast and helped maintain water quality. I didn’t have to wait weeks for the cycle to start like I did with other products.