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API

API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle

$5.88$8.38

1402+ bought in the past month

About this item

  • Contains one (1) API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
  • Lowers freshwater aquarium water pH with a phosphate-free formula
  • Does not promote algae growth with pH adjustments and is safe for plants and fish
  • Slowly neutralizes alkaline substances that cause high water pH
  • Test water weekly and use to correct pH level in freshwater aquariums
  • This product contains 9.6% of sulfuric acid

Key details

color_spec
Multi
Brand
API
Liquid Volume
118 Milliliters
Item Form
Liquid
Manufacturer
Mars Fishcare

Dimensions and fit

dimensions
‎ 1.5 x 1.5 x 5.25 inches; 4.8 ounces
weight
4.8 ounces
Item Weight
4.8 ounces
item_weight
4.8 ounces
item_package_dimensions_l_x_w_x_h
5.4 x 1.5 x 1.5 inches
item_dimensions_lxwxh
1.5 x 1.5 x 5.25 inches
size
4 oz
product_dimensions
1.5 x 1.5 x 5.25 inches; 4.8 ounces

Technical specifications

item_model_number
30C
model_name
PH DOWN 4 OZ

Item information

department
Unisex-Adult
date_first_available
June 15, 2004
brand_name
API
target_audience_keyword
algae-eaters, betta-fish, bottom-feeder-fish, cichlid-fish, fish, goldfish, invertebrate-fish, mollusks, octopuses, rays, sharks, snails
directions
Determine the pH of aquarium water with an API pH TEST KIT. To lower pH, add 2 drops per U.S. gallon (3.8 L) of aquarium water. Take another pH reading before adding another dose. Note that some fish may be sensitive to pH adjustments greater than .2 in a 24 hour period, so changes of this magnitude she be executed with extreme care. Use the API pH TEST KIT weekly to accurately monitor pH. Then, when necessary, use pH DOWN to reduce pH levels in your aquarium. Tip: Some water is high in mineral ions, such as carbonate and bicarbonate, which strongly buffer aquarium water and can resist a pH change or cause “pH rebound.” In these situations, repeated dosing may be necessary to lower pH.
country_of_origin
United States
color
Multi
number_of_items
1
style
Down
is_discontinued_by_manufacturer
No
manufacturer_recommended_age
1 month and up
best_sellers_rank
#7,536 in Pet Supplies ( See Top 100 in Pet Supplies ) #49 in Aquarium Water Treatments
Highlights

About this item

  • Contains one (1) API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
  • Lowers freshwater aquarium water pH with a phosphate-free formula
  • Does not promote algae growth with pH adjustments and is safe for plants and fish
  • Slowly neutralizes alkaline substances that cause high water pH
  • Test water weekly and use to correct pH level in freshwater aquariums
  • This product contains 9.6% of sulfuric acid
Close-up view of the API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
Details

Materials and care

material
Plastic

From the brand

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Product videos

Product video 1

Customer reviews

2,967 reviewsPositive

Rated 4.6/5 across 2,967 reviews — highly regarded by customers.

  • 100% of sampled reviews are from verified purchases.
  • 75% of sampled reviews give 4–5 stars.

Customers say

Customers find the pH adjusterer works well, particularly for 30-gallon tropical fish tanks, and appreciate its quality and value for money.

Generated from the text of customer reviews

★★★★★

Works well lowering PH level

Does what it says, works well. It has no effects on my fish or plants. Read more

MegrierVerified purchase
★★★★★

Helps my fish tanks

Work good Read more

Patrick HVerified purchase
★★★★★

Just as described

Just as described. I use quite regularly as water coming out of my tap is pH 9 or higher. Read more

Lisa M.Verified purchase
★★★★

Good stuff

It does a good, adequately changes pH and does it fast. It's easy to add to the water, just use the measuring cup in the cap. Use a test strip before and after and you should see the difference. I have a large aquatic turtle in a 300 gallon indoor pond and this product couldn't keep up with that long-term. What it did do was give me a safe way to treat the water for pH, temporarily, while I got an appropriate system in place. It's a good price for that kind of snappy resolution. Thank you! Read more

D.Verified purchase
★★★★★

Great product

Easy to order, received without issues in good condition and does wonders for fish tank. Read more

Woman in TNVerified purchase
★★★★★

Easy to use for aquarium fish

Works just as advertised. Easy to use but you do need to have a ph testing kit to verify desired ph level. Read more

Stephanie FVerified purchase
★★★★★

Stabilize your water with this product!

If you are having a plan to properly setup a new big size aquarium or even water change, this is a good recommendation. Our pH was more than 8 when tested with pH aquarium test kit. Would recommend to follow the instructions correctly, particularly not to use too much within a day to stress the fishes. Water clarity is pretty good. Fishes were able to adapt this change & I see them performing healthier. Overall good product for money & easy to use. Read more

KrishnaVerified purchase
★★★☆☆

Worked with one tank but not the other

I was so excited to receive this so I could stop worrying about the high PH in both of my fish tanks until my almond leaves came in. It worked very well for my 5 Gallon tank but sadly, it made no difference in my 20 gallon :( i listened to the instructions, I’ve done more frequent water changes, I’ve put more than the recommended amount (there’s no fish inside!) and nothing has been working :( guess I just have to keep waiting for my almond leaves! Read more

MelodyVerified purchase
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