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API

API PH Down Aquarium PH Adjuster

3.7 out of 5 stars 121 customer reviews
| 8 answered questions

Price: $13.89 & FREE Shipping on orders over $25. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
16 oz
  • Lowers pH and makes aquarium water more acidic
  • Will not cloud or color aquarium water
  • Will not encourage algae growth
  • Phosphate-free and nitrate-free
15 new from $5.32
Special Shipping Information: This product may not be available for 1 or 2 day shipping due to federal regulations that require it to ship via ground ship methods only. This product can only be shipped within the 48 contiguous states.


Featured gifts for dad's best friend
$13.89 & FREE Shipping on orders over $25. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently bought together

  • API PH Down Aquarium PH Adjuster
  • +
  • API PH Up Aquarium PH Adjuster
  • +
  • API Ammo Lock Ammonia Detoxifier
Total price: $38.27
Buy the selected items together

Product description

Size:16 oz

Lowers pH and makes aquariums more acidic. Fast-acting, colorless, easy-to-use and will not cloud or color aquarium water.


Product details

Size: 16 oz
  • Product Dimensions: 2.5 x 2.5 x 8.8 inches ; 1.2 pounds
  • Shipping Weight: 1.3 pounds (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0002ASGBS
  • Item model number: 30B
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (121 customer reviews)
  • Amazon Best Sellers Rank: #6,924 in Pet Supplies (See Top 100 in Pet Supplies)

Compare to similar items


This item API PH Down Aquarium PH Adjuster, 16-Ounce
Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart
Customer Rating 3 out of 5 stars (121) 4 out of 5 stars (80) 3 out of 5 stars (8) 4 out of 5 stars (77) 4 out of 5 stars (135) 4 out of 5 stars (235)
Price $13.89 $5.99 $6.67 $13.89 $10.49 $18.69
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com
Item Dimensions 2.5 x 2.5 x 8.75 in 2.12 x 2.12 x 5 in 2.25 x 2.25 x 8.5 in 2.5 x 2.5 x 8.75 in 6 x 6 x 8 in 2.5 x 2.5 x 8.75 in

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

on February 18, 2015
Size: 16 oz|Verified Purchase
0Comment| 14 people found this helpful. Was this review helpful to you?YesNoReport abuse
on April 4, 2015
Size: 16 oz|Verified Purchase
0Comment| 6 people found this helpful. Was this review helpful to you?YesNoReport abuse
on February 4, 2013
Size: 16 oz|Verified Purchase
0Comment| 13 people found this helpful. Was this review helpful to you?YesNoReport abuse
on April 13, 2017
Size: 1.25 oz|Verified Purchase
0Comment| One person found this helpful. Was this review helpful to you?YesNoReport abuse
on January 20, 2016
Size: 16 oz|Verified Purchase
0Comment| 2 people found this helpful. Was this review helpful to you?YesNoReport abuse
on May 21, 2017
Size: 16 oz|Verified Purchase
0Comment|Was this review helpful to you?YesNoReport abuse
on April 16, 2017
Size: 16 oz|Verified Purchase
0Comment|Was this review helpful to you?YesNoReport abuse
on May 3, 2017
Size: 16 oz|Verified Purchase
0Comment|Was this review helpful to you?YesNoReport abuse

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API PH Down Aquarium PH Adjuster, 16-Ounce
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