Aquarium Test Kits
API GH and KH Test Kit
$11.84
View Deals
Tetra 19542 EasyStrips 6-in-1 Test Strips, 25-Count
$6.79
View Deals
API 5 in 1 Aquarium Test Strips
$12.98
View Deals
HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments
$20.92
View Deals
API Nitrate Test Kit
$11.00
View Deals
Seachem Stability 250ml
$8.39
View Deals
API Freshwater PH Test Kit, 250 tests per Kit
$7.98
View Deals
API PH Test and Ajuster Combo Test Kit
$8.98
View Deals
API Copper Test Kit
$12.48
View Deals
API Reef Master Test Kit
$34.98
View Deals
API Freshwater Master Test Kit
$31.64
View Deals
SENEYE Reef Aquarium Monitor and Par Meter
$229.97
View Deals
Tetra 19543 EasyStrips 6-in-1 Test Strips, 100-Count
$13.83
View Deals
Seachem 28629 Pristine
$102.44
View Deals
API Nitrite Test Kit
$13.40
View Deals
API High Range PH Test Kit 1 1/4 Fl Oz.
$9.48
Avg. Savings $1.85
API Phosphate Test Kit
$14.98
View Deals
Salifert Potassium Reef Test Kit
$18.81
View Deals
Seachem 28658 Alert Combo Pack
$15.22
View Deals
API Replacement Test Tubes with Caps (24 Count)
$23.42
View Deals
API Calcium Test Kit
$9.00
View Deals
Pro Lab AA118 Allergen Test Kit
$50.99
View Deals
Salifert Calcium (Ca) Test Kit - 50 to 100 Tests
$19.29
View Deals
HMT General Kit
$21.00
Avg. Savings $2.19
Salifert pH Test Kit
$13.99
View Deals
Seachem MultiTest Copper Test Kit
$17.99
View Deals
Brightwell Aquatics 1 fl. oz. CoralAmino Free Form Amino Acid Supplement for Corals, 30 mL
$19.90
Avg. Savings $0.83
API Pondcare 5-in-1 Pond Test Strips
$14.20
View Deals
(3 Pack) Seachem Ph Alert for Freshwater
$22.69
View Deals
Salifert Carbonate Hardness & Alkalinity (Kh/Alk) Test Kit, 100-200 Tests
$16.19
View Deals
Seachem MultiTest Phosphate Test Kit
$25.28
Avg. Savings $6.86
Water pH Test Liquid (100-125 tests) THINK ALKALINE
$10.98
View Deals
API KH Carbonate Hardness Test Kit
$9.99
Avg. Savings $1.32
sera aqua-Test set Aquarium Test Kits
$38.24
View Deals
ZAOJIAO Auto-top-off ATO Solution Auto Water Filler Adjustable Float Valve Mounting for Aquarium Sump + 1/4" Tube 3 Meters 9.8ft Pipe for RO Water Filter System PE White
$20.99
View Deals
ZAOJIAO Auto-top-off ATO solution auto water filler Adjustable Float Valve Mounting for Aquarium sump
$14.99
View Deals
Sera pH Aquarium Test Kit
$8.50
View Deals
Hanna Instruments HI 713-25 Reagents Phosphate for HI 713 Checker HC (Pack of 25)
$19.40
View Deals
Lil' Alert Mates - Fred Snapper 1 Year Monitor LM
$8.99
Avg. Savings $0.01
API PH test Strips
$14.48
Avg. Savings $2.74
Capital One Shopping gets you better offers, automatically applies coupon codes at checkout, and lets you know when prices drop on products you've viewed and purchased.
© 2026 Capital One Shopping
%20Copyright%202023%20Fonticons,%20Inc.%20--%3e%3cpath%20d='M224.1%20141c-63.6%200-114.9%2051.3-114.9%20114.9s51.3%20114.9%20114.9%20114.9S339%20319.5%20339%20255.9%20287.7%20141%20224.1%20141zm0%20189.6c-41.1%200-74.7-33.5-74.7-74.7s33.5-74.7%2074.7-74.7%2074.7%2033.5%2074.7%2074.7-33.6%2074.7-74.7%2074.7zm146.4-194.3c0%2014.9-12%2026.8-26.8%2026.8-14.9%200-26.8-12-26.8-26.8s12-26.8%2026.8-26.8%2026.8%2012%2026.8%2026.8zm76.1%2027.2c-1.7-35.9-9.9-67.7-36.2-93.9-26.2-26.2-58-34.4-93.9-36.2-37-2.1-147.9-2.1-184.9%200-35.8%201.7-67.6%209.9-93.9%2036.1s-34.4%2058-36.2%2093.9c-2.1%2037-2.1%20147.9%200%20184.9%201.7%2035.9%209.9%2067.7%2036.2%2093.9s58%2034.4%2093.9%2036.2c37%202.1%20147.9%202.1%20184.9%200%2035.9-1.7%2067.7-9.9%2093.9-36.2%2026.2-26.2%2034.4-58%2036.2-93.9%202.1-37%202.1-147.8%200-184.8zM398.8%20388c-7.8%2019.6-22.9%2034.7-42.6%2042.6-29.5%2011.7-99.5%209-132.1%209s-102.7%202.6-132.1-9c-19.6-7.8-34.7-22.9-42.6-42.6-11.7-29.5-9-99.5-9-132.1s-2.6-102.7%209-132.1c7.8-19.6%2022.9-34.7%2042.6-42.6%2029.5-11.7%2099.5-9%20132.1-9s102.7-2.6%20132.1%209c19.6%207.8%2034.7%2022.9%2042.6%2042.6%2011.7%2029.5%209%2099.5%209%20132.1s2.7%20102.7-9%20132.1z'/%3e%3c/svg%3e)
- Home
- View All Automotive Supplies & Car Parts
- Automotive Performance Parts & Accessories
- Car Care Products
- Car Exterior Parts & Accessories
- Car Interior Accessories
- Car Lights & Lighting Accessories
- Car Oils & Fluids
- Car Paint & Paint Supplies
- Car Repair Tools & Equipment
- Car Replacement Parts
- Heavy Duty & Commercial Vehicle Equipment
- Motorcycle & Powersports Accessories
- RV Parts & Accessories
- Tires & Wheels
- View All Books
- Arts & Photography Books
- Bibles & Christian Books
- Biographies & Memoris
- Business & Money Books
- Calendars
- Children's Books
- Comic Books & Graphic Novels
- Computers & Technology Books
- Cookbooks & Food/Wine Books
- Craft & Hobby Books
- Education & Teaching Books
- Engineering & Transportation Books
- GLBT Books
- Health & Fitness Books
- History Books
- Humor Books
- Law & Legal Books
- Literature & Fiction Books
- Medical Books
- Mysteries, Thrillers & Suspense Books
- New & Used Textbooks
- Parenting & Relationship Books
- Political & Social Science Books
- Reference Books
- Religion & Spirituality Books
- Romance Novels & Books
- Science & Math Books
- Science Fiction & Fantasy Books
- Self-Help Books
- Sports & Outdoors Books
- Teen & Young Adult Books
- Test Preparation Books
- Travel Books
- View All CDs & Vinyl Records
- Alternative Rock CDs & Vinyl
- Blues CDs & Vinyl Records
- Broadway CDs & Vinyl Records
- Children's Music CDs
- Christian CDs & Vinyl Records
- Classic Rock CDs & Vinyl Records
- Classical CDs & Vinyl Records
- Comedy & Spoken Word CDs & Vinyl Records
- Country CDs & Vinyl Records
- Dance & Electronic CDs & Vinyl Records
- Folk CDs & Vinyl Records
- Gospel CDs & Vinyl Records
- Heavy Metal CDs & Vinyl Records
- Holiday & Wedding CDs & Vinyl Records
- Jazz CDs & Vinyl Records
- Karaoke CDs & Vinyl Records
- Latin Music CDs & Vinyl Records
- New Age CDs & Vinyl Records
- Opera & Classical Vocal CDs & Vinyl Records
- Pop CDs & Vinyl Records
- R&B CDs & Vinyl Records
- Rap & Hip-Hop CDs & Vinyl Records
- Reggae CDs & Vinyl Records
- Rock CDs & Vinyl Records
- Soundtrack CDs & Vinyl Records
- Special Interest CDs & Vinyl Records
- World Music CDs & Vinyl Records
- View All Electronics
- Car & Vehicle Electronics
- Chargers, TV Mounts, & Accessories
- Computers & Computer Accessories
- Digital Cameras & Photography Equipment
- GPS & Navigation
- Headphones
- Home Audio & Speakers
- Portable Speakers & Video Equipment
- Security & Surveillance Equipment
- Televisions & Video Equipment
- Video Projectors for Home Theaters
- Wearables
- eBook Readers & Accessories
- Event Tickets
- View All Industrial & Scientific Equipment
- Abrasive & Finishing Products
- Additive Manufacturing Products
- Commercial Door Products
- Cutting Tools
- Fasteners
- Filtration Equipment
- Hydraulics, Pneumatics & Plumbing Equipment
- Industrial Electrical Equipment
- Industrial Hardware
- Industrial Power & Hand Tools
- Janitorial & Sanitation Supplies
- Lab & Scientific Products
- Material Handling Products
- Occupational Health & Safety Products
- Packaging & Shipping Supplies
- Power Transmission Products
- Professional Dental Supplies
- Professional Medical Supplies
- Raw Materials
- Retail Store Fixtures & Equipment
- Robotics
- Science Education Materials
- Tapes, Adhesives & Sealants
- Test, Measurement & Inspection Equipement
- View All Movies & TV on Blu-Ray & DVD
- 3-6 Year Old TV on Blu-Ray & DVD
- A&E Home Video on DVD & Blu-Ray
- Animated TV & Movies on DVD & Blu-Ray
- Art House & International Movies on DVD & Blu-Ray
- BBC Shows on DVD & Blu-Ray
- Blu-Ray Movies
- Characters & Series
- Classic Movies on DVD & Blu-Ray
- Concert Films on Blu-Ray & DVD
- Criterion Collection on DVD & Blu-Ray
- Cult Movies
- Cult Movies on DVD & Blu-Ray
- Discovery Channel Shows on DVD & Blu-Ray
- Disney DVDs & Blu-Rays
- Disney Home Video on DVD & Blu-Ray
- Documentaries on DVD & Blu-Ray
- Fully Loaded DVDs & Blu-Rays
- Genre for Featured Categories
- HBO Movies & Shows on DVD & Blu-Ray
- Holiday & Seasonal Movies on DVD & Blu-Ray
- Independently Distributed
- Independently Distributed Movies & DVDs
- John Wayne Movies & DVDs
- MOD CreateSpace Video
- MTV Shows on Blu-Ray & DVD
- Made-for-TV Movies on DVD
- Movies on Blu-Ray & DVD
- Musicals on Blu-Ray & DVD
- Paramount Home Entertainment DVDs
- Sci-Fi Series DVDs & Blu-Rays
- Science Fiction & Fantasy DVDs
- Shakespeare on DVD Store
- Studio Specials
- Studio Specials on DVD & Blu-Ray
- TV Boxed Sets on DVD & Blu-Ray
- TV on DVD & Blu-Ray
- View All Musical Instruments
- Amplifiers & Guitar Effects
- Band & Orchestra Instruments
- Bass Guitars
- DJ Equipment
- Drums & Percussion
- Electric & Acoustic Guitars
- Electric Keyboards & MIDI
- Instrument Cases, Stands & Accessories
- Live Sound & Stage Equipment
- Microphones & Accessories
- Stringed Instruments
- Studio Recording Equipment
- Ukuleles, Mandolins & Banjos
- Woodwind Instruments
- View All Patio, Lawn & Garden Supplies
- Farm & Ranch Supplies
- Gardening & Lawn Care Supplies
- Generators & Portable Power Supplies
- Grills & Outdoor Cooking Equipment
- Havahart Traps
- Outdoor Décor
- Outdoor Heating & Cooling
- Outdoor Power Tools
- Outdoor Storage
- Patio Furniture & Accessories
- Pest Control & Insect Killers
- Pools, Hot Tubs & Supplies
- Snow Removal Equipment
- View All Tools & Home Improvement
- Building Supplies
- Electrical Supplies
- Hardware
- Kitchen & Bath Fixtures
- Light Bulbs
- Lighting & Ceiling Fans
- Measurement & Layout Tools
- Painting Supplies & Wall Treatments
- Power & Hand Tools
- Rough Plumbing
- Safety & Security Equipment
- Storage & Home Organization
- Welding & Soldering Supplies
- View All Toys & Games
- Action Figures
- Arts & Crafts Supplies
- Baby & Toddler Toys
- Board & Card Games
- Building & Construction Toys
- Dolls & Accessories
- Dress Up & Pretend Toys
- Grown-Up Toys
- Hobbies
- Kids' Electronics
- Kids' Furniture, Décor & Storage
- Learning & Educational Toys
- Novelty & Gag Toys
- Party Supplies
- Puppets
- Puzzles
- Remote Control Toys & Play Vehicles
- Sports Toys & Outdoor Play
- Stuffed Animals & Plush Toys
- Tricycles, Scooters & Wagons
- Events
- Hotels
- Sign In