SKU: 70189582709

API PH Down

Sale price$10.53 Regular price$11.70
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

API PH DownAPI PH Down API pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of acidic or alkaline conditions in water, where a value of 7. 0 corresponds to a neutral pH, pH values about 7. 0 are considered alkaline, and pH values below 7. 0 are considered acidic. Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH

API PH Down

API® pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to a neutral pH, pH values about 7.0 are considered alkaline, and pH values below 7.0 are considered acidic. Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH levels fall where they should. pH DOWN pH adjuster is fast-acting, colorless, easy to use, and will not cloud aquarium water. Because it is phosphate-free and nitrate-free, pH DOWN pH adjuster will not encourage algae growth.

Instructions:

Determine the pH of aquarium water with an API pH TEST KIT. To lower pH, add 1 ml. for each 10 gallons of aquarium water. Take another pH reading before adding another dose of pH DOWN pH adjuster. Some fish may be sensitive to pH adjustments greater than 0.2 in a 24 hour period, so changes of this magnitude should be done with extreme care.

Dose Rate:

Add 1 ml. for each 10 gallons of aquarium water.

Shipping Notes
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Exchange/Return Notes
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SKU: 70189582709

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4.1 ★★★★★
Based on 6 reviews
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Marlow
Phoenix, US
★★★★★ 4
Good color, crappy pump
Color: Dark, Size: 16 Fl Oz (Pack of 1), Color: Dark, Size: 16 Fl Oz (Pack of 1)
It works! Put it in at 9 and rinsed off at 2 and the color was apparent. And I clearly need some practice applying with my mit as you can see in the photo haha! Only reason for docking is my pump won’t work. Won’t open up to pump so have to open the entire top and pour it out onto my mit which is annoying. There also is definitely a self tanning scent that is very notable so if you get this thinking there is no smell- you’d be wrong. I wouldn’t wear it out in public
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
C
Verified Purchase
Christy Lawler
Lowell, US
★★★★★ 5
Helped My Texture & Pores So Much
Size: 2.03 Fl Oz (Pack of 1)
I bought this mainly to help with skin texture and the appearance of my pores, and it has honestly worked really well. After using it consistently, my skin feels noticeably smoother and looks more refined overall. I’ve especially noticed a difference around areas where I tend to have larger pores and uneven texture. My skin looks softer, more even, and makeup applies much more smoothly now. The serum itself feels lightweight, absorbs nicely, and doesn’t leave my skin sticky or greasy. It layers well with the rest of my skincare routine and hasn’t irritated my sensitive skin at all. I also love that the jumbo size lasts a long time, so it feels like a really good value for the amount you get. Definitely happy with this purchase and would repurchase again!
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Reviewed in the United States on May 23, 2026
L
Verified Purchase
Lena
West Palm Beach, US
★★★★★ 5
Surprisingly Effective – Smoother, Firmer, More Hydrated Skin!!!
Size: 1.01 Fl Oz (Pack of 1), Size: 1.01 Fl Oz (Pack of 1)
I decided to try the FRANKLY Closer Serum after seeing it listed as Amazon’s Choice and noticed it had been purchased 6K+ times in the past month  and I can see why! This serum has been a great addition to my skincare routine. The texture is lightweight and absorbs quickly, leaving no sticky residue. It feels hydrating right away, and over time, I’ve noticed my skin looks smoother and more refined, especially around my pores and T-zone. It doesn’t clog pores, which is important for my acne-prone skin, and it layers well under makeup or sunscreen. I appreciate the powerhouse ingredients like 9 peptides, vegan collagen, adenosine, and PHA  they’ve helped improve my skin’s elasticity and texture without irritation. The glow is real, and I can see that “glass skin” look starting to come through with consistent use. The 1.01 fl oz size may seem small, but a little goes a long way. The pump bottle is hygienic and easy to use, and the overall packaging feels clean and modern. If you’re looking for a gentle, multi-tasking anti-aging and pore-refining serum, this one is a great value  and it lives up to the hype.
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Reviewed in the United States on July 15, 2025
C
Verified Purchase
Cindy
Lake Worth, US
★★★★★ 5
The best pore reducer, even on older complexions!
Size: 2.03 Fl Oz (Pack of 1)
Nothing has ever worked reducing my enlarged cheek and nose pores over the years. Now I've finally found something that works. By the second day there was noticeable results and by the end of the first week even the small wrinkles under my eyes was gone! I use it with my normal skin care routine but I won't do without this again.
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Reviewed in the United States on April 8, 2026
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Verified Purchase
YS
Lowell, US
★★★★★ 4
Good and Hydrated
Size: 1.01 Fl Oz (Pack of 1)
It’s very good and hydrates very well. Not a fast or much improvement on pores. But very good to hydrate your skin.
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Reviewed in the United States on April 1, 2026

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