Petco Text Logo
Petco Pet Logo

API Quick Start, 4 fl. oz.

API Quick Start, 4 fl. oz.

$17.99
Volume: 
8 FZ
4 FZ
Free Shipping $39+
Icon carat down

Description

A hoy there, matey! Are you ready to set sail on your aquatic adventure? Don't let toxic ammonia and nitrite spoil your journey! The API Quick Start 4 fl. oz. is here to save the day and make sure your fish have a smooth transition to their new home. Check out what this salty sea dog has to offer:

  • - Instantly allows you to add fish to a brand new aquarium without any worries
  • - Limits toxic ammonia and nitrite that can harm your aquatic friends
  • - Contains live nitrifying bacteria that get your aquarium cycle started in a jiffy
  • - Perfect for use when adding fish, changing water or filter media, or after medicating
  • - Works with both fresh and saltwater aquariums, so all sailors are welcome aboard!
  • - Proudly made in the USA, so you know it's top-notch quality

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU1525700
Primary BrandAPI
Days to ShipShips Next Business Day
Personalized Item flagNo
Volume4 FZ

Description

A hoy there, matey! Are you ready to set sail on your aquatic adventure? Don't let toxic ammonia and nitrite spoil your journey! The API Quick Start 4 fl. oz. is here to save the day and make sure your fish have a smooth transition to their new home. Check out what this salty sea dog has to offer:

  • - Instantly allows you to add fish to a brand new aquarium without any worries
  • - Limits toxic ammonia and nitrite that can harm your aquatic friends
  • - Contains live nitrifying bacteria that get your aquarium cycle started in a jiffy
  • - Perfect for use when adding fish, changing water or filter media, or after medicating
  • - Works with both fresh and saltwater aquariums, so all sailors are welcome aboard!
  • - Proudly made in the USA, so you know it's top-notch quality

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU1525700
Primary BrandAPI
Days to ShipShips Next Business Day

Reviews

Rating Snapshot

Select a row below to filter reviews.

5 stars

151

4 stars

22

3 stars

2

2 stars

3

1 stars

6

Overall Rating

4.7
56 out of 62 (90%) reviewers recommend this product

Review this Product

Adding a review will require a valid email for verification
Customers say

Customers overwhelmingly praise this product for rapidly establishing beneficial bacteria and enabling immediate fish addition without waiting for natural cycling. Reviewers consistently report that ammonia and nitrite levels drop quickly to zero, preventing new tank syndrome and fish loss during setup or maintenance. Many describe successfully introducing fish the same day as tank setup with zero casualties. Beyond initial cycling, customers rely on it during water changes to maintain stable parameters and clear water conditions, reducing fish stress. Long-term users emphasize loyalty and consistent results across tank sizes. A few customers reported no noticeable effect, though such feedback is minimal and vastly outweighed by strong satisfaction.

Most Helpful Favorable Review

Great product !

Shawn123

11 years ago

Product when used injunction with API STRESSZYME works great ....tank is sparkli...

Show Full Review

9 PEOPLE FOUND THIS HELPFUL

Show Reviews:

5

and

4

Most Helpful Critical Review

No Start!

katontko

7 years ago

This product never worked for my new aquarium. Did not help to start the cycling...

Show Full Review

10 PEOPLE FOUND THIS HELPFUL

Show Reviews:

3

2

and

1

Customer Images

Filter Reviews

1 - 8 of 154 Reviews

30 Ratings-Only Reviews

Great

SweetGhost

3 months ago
Added fish fairly quickly, they good and healthy because of this!

Yes, I recommend this product.

Helpful?
Response from petco.com:
3 months ago
Customer Care
Hi, thank you for reviewing API Quick Start. We're happy to hear it worked well for your aquarium setup and helped support a smooth transition for your fish. We appreciate your feedback!

Makes cleaning my tank so much easier

KateM

4 months ago
[This review was collected as part of a promotion.] Cycling the tank has never been easier. The fish are happy, the water is clear and setup was smooth. The directions on the bottle are easy to follow. This is an easy to use product for beginner fish owners.

Originally posted on apifishcare.com

Nice

MiahC

4 months ago
[This review was collected as part of a promotion.] Worked really well. My fish seem to be really happy and the adjustment was very easy. Easy to use and makes maintenance almost non existent in the beginning.

Originally posted on apifishcare.com

Fishes quick start

MaryL

5 months ago
[This review was collected as part of a promotion.] Quick start speaks for itself. It gives you the short to quick ability to add fishes to an aquarium without them carrying any bacterias from different aquariums. It's shows quick and easy transfers no matter the water type.

Originally posted on apifishcare.com

Wonderful starter for aquariums

ResiaV

5 months ago
[This review was collected as part of a promotion.] Its a good product to limit the exposure of toxic ammonia and nitrite to the fishes. It contains nitrifying bacteria. Its a good starter for aquariums.

Originally posted on apifishcare.com

easy to use quick to start

SandraC

5 months ago
[This review was collected as part of a promotion.] API Quickstart make my aquarium set up way smoother. The fish acclimated well, the packaging kept everything secure, and it’s really helped jumpstart the cycle. Maintenance feels easier faster and more exciting since the water stays more stable, and my plans are adjusted quickly and started driving sooner than expected.

Originally posted on apifishcare.com

Fish happy with clean water

LorenaO

6 months ago
[This review was collected as part of a promotion.] This product is perfect when you have to change the water to your fish. Is easy to use and it works great. The size is perfect for a couple months of use.

Originally posted on apifishcare.com

Good

CrysaW

6 months ago
[This review was collected as part of a promotion.] I am so happy with this product! It did what it needed to and required very minimal maintenance. It comes with quite a bit of product I’ll definitely be buying this in the future

Originally posted on apifishcare.com

1 - 8 of 154 Reviews

Questions

1 - 10 of 17 Questions

How many drops per gallon when doing a water change for a 10-gallon tank?

  1. It is 20 drops of API QuickStart for every gallon of water.



When should I put fish into my aquarium after putting API quick start?

    How many times do you add this to your tank just once or like once every few days?

    1. We would recommend to add when performing maintenance to the aquarium or when it is becoming established. It will not be harmful if used more frequently (1-2 times a week).



    Can I use this for a betta fish?

    1. Yes, I have used this product with a betta fish.



    Is Quick Start the same as Stress Zyme? How are they different? Are they safe to use in Bettas tanks? Can I use with Stress Coat Plus? Are API products compatible with other brands or must I use them with API products only?

    1. Quick Start is not same as Stress Zyme. Different usage and benifits. Can be use in betta tanks with right dosage. Both best to use with Stress Coat. Not familiar on API products' compatibility with other brand products.



    I can use for add new fish in my aquarium with my other old fish..? And only i need add at the water with my fish in the water, 10ml for 10galons say the bottle its ok

      I just started a 20 gallon tank. I already have fish in it. I bought a mini 1OZ bottle of this to try. On my next water change is this safe to add while fish are in it?

      1. Yes, it is safe. Just follow recommended dosage. I use it each time I do water change and my fish is doing fine.



      If you put to much in a tank will it kill the fish?

        I recently set my tank back up & now the aquarium water has been cloudy for about 3-4 weeks 

        1. Do you have sand substrate? If so you might not have rinsed it enough and might need a water clarifier so that your filter can take it out. It could also be bacterial bloom which is the beginning phase of the nitrogen cycle in new tanks 



        I accidently used quick start in my aquarium that expired in may 2019. The lid was always kept on the bottle and it was kept in a dark area at room temperature. Was it efficient in my tank or do I need to add more?

        1. You would need to buy a new bottle, since all the beneficial bacteria included in the liquid would be die when it expires.



        Related Articles & Questions