1-800-566-3474
Live Chat Support
    Free Shipping On $175+
  • FREE Shipping On $175+
  • 14-Day Low Price Guarantee
  • 14-Day Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
FREE Shipping on
Orders Over $175
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $175 ship FREE. Learn More
 
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you've purchased the item! Learn More
 
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 6 pm EST ship the same day! Learn More
 
Home » Saltwater Aquarium Supplies  » Test Kits  » Alkalinity (KH)  »  Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit
Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit

Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit

In Stock: Buy now and your order will ship the next business day
Item #:
AP3127
Quantity:
MSRP: $7.99
Was: $5.49
You Save: $4.00 (50%)
Marine Depot 60-day Returns
At Marine Depot, we stand behind our products. That is why we offer a 60-day return period: one of the best in the industry! Learn More
 

Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit Information


Product Manuals & Documentation

Tests tap water & fresh or saltwater aquariums for carbonate hardness (KH). Helps prevent fish stress caused by rapid pH shifts, the result of low levels of KH. Also used to determine the proper dose of pH buffers.




Manufacturer Info

Aquarium Pharmaceuticals Aquarium Supplies
Aquarium Pharmaceuticals (API) has been helping people take good care of ornamental fish for over 40 years. Their research and development scientists have advanced the care of fish with all-natural medications, stable bacteria for biological filtration, one-bottle test kits, consumer-friendly dosing caps and much more. They’ve received over 25 global patents for their breakthrough innovations in the aquatics industry. And they continue to look for ways to improve the fishkeeping experience for hobbyists. Research. Experience. Dedication to scientific, quality treatment for healthy fish. It’s what makes API the first choice of aquarium owners. API manufactures and sells hundreds of products across many different product categories, including aquarium and pond treatments, aquarium equipment, aquariums and fish nutrition.

Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit Reviews



Average Rating
(15 reviews)
Sort Reviews By:
of 2
Page


Perfect

by
Reviewers Rating Excellent!


Posted: 2/25/2013 from SAUGATUCK, MI UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: Can't ask for better


Did you find this review helpful? Yes No




simple, cheap, accurate

by
Reviewers Rating Excellent!


Posted: 9/30/2012 from NORTHPORT, NY UNITED STAT
5.0 5
Experience Level: Intermediate


Comments: Good, cheap way to test ones water kh


Did you find this review helpful? Yes No




Good buy!

by
Reviewers Rating Average


Posted: 3/21/2011 from ALTURAS, CA UNITED STATES
3.0 5
Experience Level: Intermediate


Comments: Test is simple to use, but not quite as accurate as other tests that I have used. I will probably use this along with other tests kits when I need a more precise reading.


0 of 1 People found this review helpful, did you? Yes No




Easy to read

by
Reviewers Rating Excellent!


Posted: 7/3/2010 from UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: The color change is very easy to see.


Did you find this review helpful? Yes No




Good Buy

by
Reviewers Rating Excellent!


Posted: 6/12/2010 from RENO, NV UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: Excellent sensitivity/color change. Goes from blue to yellow in a single drop and you can't beat the price or the ease of use. Beats another more expensive test kit that I was using.


Did you find this review helpful? Yes No




Easy Test

by
Reviewers Rating Excellent!


Posted: 11/30/2009 from FREMONT, CA UNITED STATES
5.0 5
Experience Level: Beginner


Comments: This test is easy, clear color change, inexpensive.


Did you find this review helpful? Yes No




Great for the money

by
Reviewers Rating Excellent!


Posted: 9/13/2009 from KNOXVILLE, TN UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: I don't like test kits that change from one color to yellow. But this one is the best Ive seen. Its very noticeable change in color.


Did you find this review helpful? Yes No




chem. hardness

by
Reviewers Rating Great


Posted: 5/2/2009 from RAYMOND, WA UNITED STATES
4.0 5
Experience Level: Beginner


Comments: a simple easy way to test your chemical hardness


Did you find this review helpful? Yes No




Good Kit

by
Reviewers Rating Excellent!


Posted: 4/22/2008 from APO, AP UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: My first time using API it worked well and was fairly easy to use. I'm new to reef keeping and need an accurate test to monitor all water parameters. I will definately use their full line of kits.


Did you find this review helpful? Yes No




good

by
Reviewers Rating Excellent!


Posted: 4/22/2008 from JANESVILLE, WI UNITED STATES
5.0 5
Experience Level: Expert


Comments: good ,cheap


Did you find this review helpful? Yes No


of 2
Page
Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit Window Navigation Prev Next Zoom Close
We value your opinion & experience
Thank you for taking the time to review our products!

This is a Product Review for: Aquarium Pharmaceuticals® API Freshwater/Saltwater Carbonate Hardness (KH) Test Kit

First tell us about yourself.

Name to display on the review: Location (ex: Anaheim, CA):
Your experience level:


How would you rate this product?

Review Title:


Write your review:
(Please focus on product quality and performance)

This item is temporarily unavailable but will be back in stock soon.

Item #
Price:
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.

Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

Your Email:
Just enter your email address below and we'll let you know when the product you are looking for becomes available!

Item Code:
Price:
Your Email:
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you’ve purchased the item!

Enter the price, shipping cost and website address where you found the lower price. Then click the "Add to Cart" button. We will review the lower price while processing your order and make any necessary reductions before your order ships. Some restrictions apply. See Terms & Conditions.

Price *
Shipping Cost *
Competitor's Website *

Add to Wish List
Select Wish List:
Comments (up to 200 characters):
Quantity Desired:
Quantity Received:
Priority:
Email Specials
Subscribe to our newsletter feed.
Newsletter Tips & Tricks! New Products!
Discounts & Promos!
Testimonials
Nov 11, 2014
"The site is easy to navigate, the prices are competitive, and when I've called Customer Service, they have been more than helpful."
Alijean

Nov 5, 2014
"Marine Depot continues to set the benchmark for online shopping."
cubera

Nov 4, 2014
"Love the company and they have a great selection and excellent customer service."
Alisha

Save Money Get our best deals, product how-tos and expert tips delivered weekly to your inbox.