Sign in to unlock exclusive benefits
30-Day Free Returns*
The API 5-in-1 Freshwater Aquarium Test Strip is a convenient and reliable tool for testing the water parameters in your freshwater aquarium. It provides quick and accurate results for five essential tests: pH, nitrite, nitrate, carbonate hardness (KH), and general hardness (GH). These tests help you monitor the water quality and ensure water treatment for aquarium for your fish and plants. The API test strips are easy to use, simply dip them into the water and compare the colors on the strip to the provided color chart. The API 5-in-1 Freshwater Aquarium Test Strip is available in three sizes: 4 ct, 25 ct, and 100 ct, allowing you to choose the quantity that suits your needs.
Ingredients:
Glutaraldehyde; Water
Freshwater
Fish
Tropical Freshwater, Betta, Goldfish, Bottom Feeder, Cichlid
Liquid
Direction To Use:
Use the API® Dosing Cap on the Bottle. Add 1ml per 10 U.S. gallons of aquarium water or 5ml for 50 gallons. Dose once a day.

Use code: WELCOME10
To Get Instant 10% Discount on Your First Order!
Screen reader optimized
Clear flashes & reduces color
More focus & fewer distractions
Assist with reading & focusing
Enhances website's visuals
Loading subscription options…
Enter your email to claim your exclusive welcome discount.
For first-time customers only. We will send a verification code to your email.
We sent a 6-digit code to
Your code is ready to use. Apply it at checkout.
—
This referral discount is only available for first-time customers. Thanks for being a loyal shopper!