Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

K

KensFish.com

api-ph-down-1-25-oz

api-ph-down-1-25-oz

KensFish.com

API PH Down

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$3.99

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shop is the next step on our mission to make commerce better for everyone.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

API pH DOWN 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...

Delivery & Returns

K

KensFish.com

4.9 (1.9K)

More from KensFish.com

fluval-2-in-1-digital-thermometer

Fluval 2 in 1 Digital Thermometer

(2)

api-ph-up-16-oz

API PH Up

seachem-zeolite-100-ml-bag

Seachem Zeolite

api-proper-ph-8-2-160-gram

API Proper PH 8.2 210 Gram

seachem-algae-pads-3-pack

Seachem Algae Pads

hikari-frozen-bloodworms-3-5-oz

Hikari Frozen Bloodworms

(1)

kens-premium-super-tropical-flake

Ken's Premium Super Tropical Flake

(33)

kens-premium-veggie-wafers

Ken's Premium Veggie Wafers

(23)

acurel-f-water-clarifier-25-ml

Acurel F Water Clarifier

seachem-metroplex-5-gram

Seachem MetroPlex

(2)

hikari-frozen-brine-shrimp-3-5-oz

Hikari Frozen Brine Shrimp

(1)

seachem-prime-100-ml

Seachem Prime

(12)

Related to KensFish.com

Nature Aquariums USA

4.8

(165)

Exotica River Rock-sold by the pound

(2)

Black Lava Rock SOLD BY LB

(1)

Dragon Stone Freshwater Rock

Cabomba Green

(2)

Mountain Stone Freshwater

(1)

Turbo Start 700-Freshwater

(1)

ANACHARIS -EGERIA DENSA

(4)

Anubias Nana Petite

(2)

Rotala Rotundifolia Orange Juice

(2)

Bacopa caroliniana

(1)

Phyllanthus Fluitans Red Root Floater

(2)

Polished River Rock-sold by the pound

Pet Life

4.3

(1.2K)

Dr. Marty Nature's Blend Freeze Dried Raw Dog Food

17% off

Dr. Marty Nature's Blend Freeze Dried Raw Dog Food

Blue Ribbon Easy Catch Fine Mesh Nylon Aquarium Net Blue - 4 In

17% off

Blue Ribbon Easy Catch Fine Mesh Nylon Aquarium Net Blue - 4 In

(2)

Mika & Sammy's Medium Bone Natural Dog Treats - 4.5 Inch

17% off

Mika & Sammy's Medium Bone Natural Dog Treats - 4.5 Inch

Dr. Marty Tilly's Treasure Beef Liver Natural Dog Treats - 4 Oz

17% off

Dr. Marty Tilly's Treasure Beef Liver Natural Dog Treats - 4 Oz

(7)

Royal Canin Instinctive Feline Health Nutrition Chunks in Gravy Wet Cat Food Pouch - 3 Oz - Case of 12 Default Title

17% off

Royal Canin Instinctive Feline Health Nutrition Chunks in Gravy Wet Cat Food Pouch - 3 Oz - Case of 12

Mika & Sammy's Large Bone Natural Dog Treats - 6.5 Inch

17% off

Mika & Sammy's Large Bone Natural Dog Treats - 6.5 Inch

(1)

Steve's Beef Freeze Dried Nuggets Freeze-Dried Dog Treats - 1.25 lb Bag

17% off

Steve's Beef Freeze Dried Nuggets Freeze-Dried Dog Treats - 1.25 lb Bag

Van Ness Lightweight Double Dish Bowl Dual 8 Ounce Food and Water Dog Bowl - Small - 16 Oz Default Title

16% off

Van Ness Lightweight Double Dish Bowl Dual 8 Ounce Food and Water Dog Bowl - Small - 16 Oz

Dr. Marty Raw Beef and Venison Freeze-Dried Dog Food - 16 Oz

17% off

Dr. Marty Raw Beef and Venison Freeze-Dried Dog Food - 16 Oz

Lee's Round Kritter Keeper - Small

17% off

Lee's Round Kritter Keeper - Small

Dr. Marty Nature's Feast Essential Wellness Fish and Poultry Adult Freeze-Dried Raw Cat Food 5.5 Ounce

17% off

Dr. Marty Nature's Feast Essential Wellness Fish and Poultry Adult Freeze-Dried Raw Cat Food

Frankly Pet Beef Chips Natural Dog Chews - 1 lb Bag

17% off

Frankly Pet Beef Chips Natural Dog Chews - 1 lb Bag

Rons Cichlids

5

(447)

Ron's Cichlids Adult Food

(132)

Ron's Cichlids Juvenile Food

(53)

Ron's Cichlids Medicated Food Mix

(69)

Ron's Cichlids "Big Boy" Food

(44)

Ron's Cichlids Mbuna Food

(58)

Ron's Cichlids Insect Blend

(31)

Ron's Cichlids Veggie Wafers

(26)

Ron's Cichlids Veggie Wafer Sample

(3)

Ron's Cichlids "Monster Munch" Food

(19)

Ron's Cichlids Fry Food - Rons Cichlids

Ron's Cichlids Fry Food

(16)

Ron's Cichlids Big Fry Food

(4)

Medication Packet Only - Needs Mixed with food

(3)

Pets Warehouse

4.8

(77)

Hikari Jumbo Bloodworm Frozen Fish Food 3.5 oz SD-5

Hikari Jumbo Bloodworm Frozen Fish Food 3.5 oz SD-5

(2)

Marineland Part Canopy Backstrip 3/16" 36" Large BS-36

(5)

Hikari Bio-Pure Frozen Mysis Shrimp Fish Food 3.5 oz SD-5

Hikari Bio-Pure Frozen Mysis Shrimp Fish Food 3.5 oz SD-5

(2)

San Francisco Saltwater Multipack Frozen Fish Food 2 lb

San Francisco Saltwater Multipack Frozen Fish Food 2 lb SD-5

(1)

San Francisco Brine Shrimp Frozen Fish Food 3.5 oz SD-5

San Francisco Brine Shrimp Frozen Fish Food 3.5 oz SD-5

Hikari Bio-Pure Spirulina Brine Shrimp Frozen Fish Food 3.5 oz SD-5

Hikari Bio-Pure Spirulina Brine Shrimp Frozen Fish Food 3.5 oz SD-5

Marineland Part Replacement Canopy Hinge 3/16" 36" HD-36

(2)

Aqueon Part Backstrip 3/16" 6ft-Clear

(1)

Aquatop Premium Carbon Cartridge for BFK Formosa Aquarium Kits 2 pk 850047393913

Aquatop Premium Carbon Cartridge for BFK Formosa Aquarium Kits 2 pk

Dr. Marty's Nature's Blend Essential Wellness Freeze Dried Dog Food 80 oz

Pro Salt Clam Strips IQF-Individually Quick Frozen Fish Food 10 oz SD-5

Pro Salt Clam Strips IQF-Individually Quick Frozen Fish Food 10 oz SD-5

(1)

Redbarn Pet Products Chew-A-Bulls Dental Dog Treat Brush 6 pk, Large 785184011416

Redbarn Pet Products Chew-A-Bulls Dental Dog Treat Brush 6 pk, Large

Discover top brands

Fashion Nova

4.3 (428.9K)

Exclusive offer available

Revice

4.5 (8.5K)

OOFOS

Exclusive offer available

OOFOS

4.5 (178.5K)

Culture Kings US

Culture Kings US

Culture Kings US

4.7 (146.1K)

32 Degrees

4.7 (227.9K)

Aviator Nation

Exclusive offer available

Aviator Nation

4.5 (89.4K)

Mandala Scrubs

Exclusive offer available

Mandala Scrubs

4.6 (11K)

Little Sleepies

Exclusive offer available

Little Sleepies

4.9 (399.2K)

Rockstar Original

Rockstar Original

Exclusive offer available

Rockstar Original

4.6 (180.8K)

Exclusive offer available

The GLD Shop

4.7 (167.3K)