API pH Down Aquarium pH Treatment 4 Ounces
API pH Down Aquarium pH Treatment 4 Ounces
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API pH Down Aquarium pH Treatment 4 Ounces

4.8 stars out of 10 reviews
(4.8)|
10 ratings

Key item features

  • 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
Current price is $8.04
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Columbus, 43215
Arrives by Sun, Feb 22
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4.460404435746901 stars out of 5, based on 7677 seller reviews(4.5)
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Comparison Chart:
Aquarium water treatment typeAquarium Water TreatmentAPI pH Down Aquarium pH Treatment 4 OuncesAquarium Water TreatmentAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 ozAquarium Water TreatmentAquarium pH Up Solution for Healthy Freshwater FishAquarium Water ConditionerAqueon AquaPacs Water Conditioner 4-PackAquarium Water TreatmentAqueon AquaPacs Sludge Remover 4-PackAquarium Water TreatmentAqueon AquaPacs Water Clarifier 4-Pack
Animal typeFishAPI pH Down Aquarium pH Treatment 4 OuncesFishAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 ozFish/AquaticAquarium pH Up Solution for Healthy Freshwater FishFishAqueon AquaPacs Water Conditioner 4-PackFishAqueon AquaPacs Sludge Remover 4-PackFishAqueon AquaPacs Water Clarifier 4-Pack
Retail packagingSingle PieceAPI pH Down Aquarium pH Treatment 4 OuncesSingle PieceAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 ozSingle PieceAquarium pH Up Solution for Healthy Freshwater FishSingle PieceAqueon AquaPacs Water Conditioner 4-Pack-Aqueon AquaPacs Sludge Remover 4-Pack-Aqueon AquaPacs Water Clarifier 4-Pack
Product net content parent4 Fluid OuncesAPI pH Down Aquarium pH Treatment 4 Ounces-API pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz1 EachAquarium pH Up Solution for Healthy Freshwater Fish4 CountAqueon AquaPacs Water Conditioner 4-Pack-Aqueon AquaPacs Sludge Remover 4-Pack-Aqueon AquaPacs Water Clarifier 4-Pack
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4.8 out of 5 stars
stars10 ratings6 reviews
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Showing 1-3 of 6 reviews

Aug 15, 2025
Walmart customer
Top Reviewer
Item details
Size: 4 oz
Sold byPets and NotionsDelivered byWalmart
5 out of 5 stars review

Verified Purchase

10ml to 10 gallon tank

Helpful?7DH1OXYTS7GO24921053
Jan 9, 2021
Ashly
5 out of 5 stars review

Verified Purchase

You can also use this product to remove lime and mineral buildup on aquariums. Follow safety warnings. Tank looks new and is safe for fish.

Helpful?7DH1OXYTS7GO24921053
Sep 6, 2023
CC
Top Reviewer
Item details
Size: 4 oz
Sold byKwik Retail
5 out of 5 stars review

Verified Purchase

Good product

I trust API products. This is no exception on this product. Works well.

Incentivized Review
Helpful?7DH1OXYTS7GO24921053