SKU: 45626470258

API pH Down, 1.25 OZ

Sale price$20.14 Regular price$22.38
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

API pH Down, 1.25 OZAPI pH DOWN is a pH adjuster designed to reduce pH levels, making freshwater aquariums more acidic for both fish and plants when the levels become too elevated. pH indicates the acidity or alkalinity of water, with a neutral pH value of 7. 0, values above 7. 0 deemed alkaline, and those below 7. 0 classified as acidic. Various fish species require different pH levels to thrive, making it essential to regularly check your water to ensure pH levels are

API® pH DOWN is a pH adjuster designed to reduce pH levels, making freshwater aquariums more acidic for both fish and plants when the levels become too elevated. pH indicates the acidity or alkalinity of water, with a neutral pH value of 7.0, values above 7.0 deemed alkaline, and those below 7.0 classified as acidic.

Various fish species require different pH levels to thrive, making it essential to regularly check your water to ensure pH levels are within the appropriate range. The pH DOWN adjuster acts quickly, is clear, simple to use, and will not cloud your aquarium water. Additionally, since it is free from phosphates and nitrates, the pH DOWN adjuster will not promote algae growth.

Use an API pH TEST KIT to assess the pH of your aquarium water. To decrease pH, add 1 ml for every 10 gallons of aquarium water.

Before applying another dose of pH DOWN, take another pH measurement.

Be cautious, as certain fish may react sensitively to pH adjustments exceeding 0.2 within a 24-hour period, so such changes should be made with careful consideration.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 45626470258

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 1690 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kriss Michaud
Grantham, US
★★★★★ 4
Almost perfect
Size: 16 Inch, Size: 16 Inch
Only reason I gave it 4 stars is, they aren’t exactly 90 degrees. I used them on a work bench and I could shim them to be right. If these were a critical component they would be off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
B
Verified Purchase
bruce thornell
Natrona Heights, US
★★★★★ 5
Does what it says
Size: 10 Inch
Does what it says and holds up
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Just as described
Size: 20 Inch
Easy installation. All parts are included.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
A
Verified Purchase
Anthony Thompson
New York, US
★★★★★ 1
Is not square when in the locked open position.
Size: 24 Inch, Size: 24 Inch
Purchased 2 sets of these to make a folding wing on my workbench. Didn’t expect great quality but did expect 90 degrees. Installed and the end of my 27” wing is 25mm higher than the fixed end. Measured bracket and hypotenuse and ran some quick cosine to discover the bracket is actually 91.286degrees. There is zero adjustment capability on these. Buyer beware
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
O
Verified Purchase
orsinos12
Lowell, US
★★★★★ 5
Good shelf.
Size: 8 Inch
Great small shelf easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026

recommand products