API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle, Blues & Purples

Works well

What can i say about this. If you are in the aquarium business you probably have stock in this stuff too. We buy this at least once or twice a year, about everytime we start a new tank which is often enough. We use existing biologicals that from our filters and tanks but we also toss in a cap or 2 of this stuff as well. Always had great results.

I needed to use this since my tank hadn't fully cycled yet, but I do have plants so I wasn't relying on this entirely. It seems to help perk up the system and assist the tail end of the cycle so you don't have to wait for ammonia to build up before you start getting the beneficial bacteria. I'd buy again!

I swear by all of the API products, and they never disappoint used this quick start in my 20 gallon tank and water tested perfect just 24 hours later

Everything is good but i hate how there’s no 2nd sticker after the blue cap unlike the bigger bottles. When i opened it, it was so close to leaking due to the delivery. this product works as it should be and everything just that if someone throws the package, it will most likely be opened and spilled

API Quick Start is a must-have every time I set up a new tank. It makes the cycling process so much easier by quickly establishing the bacteria needed to keep ammonia and nitrite levels safe for fish. I’ve had great results with it

Returning to salt water fish keeping. Tank was slow to cycle, adding this product pushed the process along. Was able to complete cycle in 3 weeks and safely add fish after ammonia and nitrite levels fell to zero.

The media could not be loaded. I have had fish 40 + years and I only trust these products. Now API and I use Terra. These are the companies who know fish and reptiles. When you want to have pets in captivity to stay healthy productive and alive there is no other brand you should trust. Highly encourage you to get a bottle of quick start and especially stress coat. Also get the terra thermometer all are necessary to the livelihood of your fish health. No more cloudy water or haze or itck and negative bacteria. Use carefree.